Application does not start (The expression is not a valid conditional expression)

12:16:15.168 INFO  c.h.cuba.core.app.ConfigStorage         - Loading DB-stored app properties cache
12:16:15.703 ERROR c.h.c.s.a.AuthenticationManagerBean     - Exception is thrown by authentication provider
java.lang.IllegalArgumentException: An exception occurred while creating a query in EntityManager: 
Exception Description: Syntax error parsing [select u from sec$User u where u.loginLowerCase = ?1 and (u.active = true or u.active is null)]. 
[31, 93] The expression is not a valid conditional expression.
[93, 94] The query contains a malformed ending.
	at org.eclipse.persistence.internal.jpa.EntityManagerImpl.createQuery(EntityManagerImpl.java:1750) ~[org.eclipse.persistence.jpa-2.7.3-2-cuba.jar:na]
	at com.haulmont.cuba.core.sys.QueryImpl.buildJPAQuery(QueryImpl.java:216) ~[cuba-core-7.0.3.jar:7.0.3]
	at com.haulmont.cuba.core.sys.QueryImpl.getQuery(QueryImpl.java:131) ~[cuba-core-7.0.3.jar:7.0.3]
	at com.haulmont.cuba.core.sys.QueryImpl.getResultList(QueryImpl.java:369) ~[cuba-core-7.0.3.jar:7.0.3]
	at com.haulmont.cuba.security.auth.providers.AbstractAuthenticationProvider.loadUser(AbstractAuthenticationProvider.java:63) ~[cuba-core-7.0.3.jar:7.0.3]
	at com.haulmont.cuba.security.auth.providers.AnonymousAuthenticationProvider.authenticate(AnonymousAuthenticationProvider.java:61) ~[cuba-core-7.0.3.jar:7.0.3]
	at com.haulmont.cuba.security.auth.AuthenticationManagerBean.authenticateInternal(AuthenticationManagerBean.java:252) [cuba-core-7.0.3.jar:7.0.3]
	at com.haulmont.cuba.security.auth.AuthenticationManagerBean.login(AuthenticationManagerBean.java:117) [cuba-core-7.0.3.jar:7.0.3]
	at com.haulmont.cuba.security.auth.AnonymousSessionHolder.loginAnonymous(AnonymousSessionHolder.java:82) [cuba-core-7.0.3.jar:7.0.3]
	at com.haulmont.cuba.security.auth.AnonymousSessionHolder.initializeAnonymousSession(AnonymousSessionHolder.java:72) [cuba-core-7.0.3.jar:7.0.3]
	at com.haulmont.cuba.security.auth.AnonymousSessionHolder.applicationStarted(AnonymousSessionHolder.java:45) [cuba-core-7.0.3.jar:7.0.3]
	at com.haulmont.cuba.core.sys.AppContext.startContext(AppContext.java:239) [cuba-global-7.0.3.jar:7.0.3]
	at com.haulmont.cuba.core.sys.AppContext$Internals.startContext(AppContext.java:302) [cuba-global-7.0.3.jar:7.0.3]
	at com.haulmont.cuba.core.sys.AbstractWebAppContextLoader.contextInitialized(AbstractWebAppContextLoader.java:86) [cuba-global-7.0.3.jar:7.0.3]
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4663) [catalina.jar:9.0.14]
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5131) [catalina.jar:9.0.14]
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) [catalina.jar:9.0.14]
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:713) [catalina.jar:9.0.14]
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690) [catalina.jar:9.0.14]
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:695) [catalina.jar:9.0.14]
	at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1133) [catalina.jar:9.0.14]
	at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1868) [catalina.jar:9.0.14]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_201]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_201]
	at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) [tomcat-util.jar:9.0.14]
	at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112) [na:1.8.0_201]
	at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:1045) [catalina.jar:9.0.14]
	at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:429) [catalina.jar:9.0.14]
	at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1577) [catalina.jar:9.0.14]
	at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:309) [catalina.jar:9.0.14]
	at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123) [catalina.jar:9.0.14]
	at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:424) [catalina.jar:9.0.14]
	at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:367) [catalina.jar:9.0.14]
	at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:934) [catalina.jar:9.0.14]
	at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:831) [catalina.jar:9.0.14]
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) [catalina.jar:9.0.14]
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1382) [catalina.jar:9.0.14]
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1372) [catalina.jar:9.0.14]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_201]
	at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) [tomcat-util.jar:9.0.14]
	at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134) [na:1.8.0_201]
	at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:907) [catalina.jar:9.0.14]
	at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262) [catalina.jar:9.0.14]
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) [catalina.jar:9.0.14]
	at org.apache.catalina.core.StandardService.startInternal(StandardService.java:423) [catalina.jar:9.0.14]
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) [catalina.jar:9.0.14]
	at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:933) [catalina.jar:9.0.14]
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) [catalina.jar:9.0.14]
	at org.apache.catalina.startup.Catalina.start(Catalina.java:637) [catalina.jar:9.0.14]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_201]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_201]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_201]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_201]
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:350) [bootstrap.jar:9.0.14]
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:492) [bootstrap.jar:9.0.14]
Caused by: org.eclipse.persistence.exceptions.JPQLException: 
Exception Description: Syntax error parsing [select u from sec$User u where u.loginLowerCase = ?1 and (u.active = true or u.active is null)]. 
[31, 93] The expression is not a valid conditional expression.
[93, 94] The query contains a malformed ending.
	at org.eclipse.persistence.internal.jpa.jpql.HermesParser.buildException(HermesParser.java:157) ~[org.eclipse.persistence.core-2.7.3-2-cuba.jar:na]
	at org.eclipse.persistence.internal.jpa.jpql.HermesParser.validate(HermesParser.java:336) ~[org.eclipse.persistence.core-2.7.3-2-cuba.jar:na]
	at org.eclipse.persistence.internal.jpa.jpql.HermesParser.populateQueryImp(HermesParser.java:280) ~[org.eclipse.persistence.core-2.7.3-2-cuba.jar:na]
	at org.eclipse.persistence.internal.jpa.jpql.HermesParser.buildQuery(HermesParser.java:165) ~[org.eclipse.persistence.core-2.7.3-2-cuba.jar:na]
	at org.eclipse.persistence.internal.jpa.EJBQueryImpl.buildEJBQLDatabaseQuery(EJBQueryImpl.java:144) ~[org.eclipse.persistence.jpa-2.7.3-2-cuba.jar:na]
	at org.eclipse.persistence.internal.jpa.EJBQueryImpl.buildEJBQLDatabaseQuery(EJBQueryImpl.java:118) ~[org.eclipse.persistence.jpa-2.7.3-2-cuba.jar:na]
	at org.eclipse.persistence.internal.jpa.EJBQueryImpl.<init>(EJBQueryImpl.java:104) ~[org.eclipse.persistence.jpa-2.7.3-2-cuba.jar:na]
	at org.eclipse.persistence.internal.jpa.EJBQueryImpl.<init>(EJBQueryImpl.java:88) ~[org.eclipse.persistence.jpa-2.7.3-2-cuba.jar:na]
	at org.eclipse.persistence.internal.jpa.EntityManagerImpl.createQuery(EntityManagerImpl.java:1748) ~[org.eclipse.persistence.jpa-2.7.3-2-cuba.jar:na]
	... 54 common frames omitted

Perhaps, it’s a problem with EclipseLink ORM and Turkish locale. We have an issue:Application can't start on operation system with Turkish locale · Issue #566 · cuba-platform/cuba · GitHub.
As workaround try to set English locale in the tomcat/bin/setEnv.sh or set English locale in the OS.