Hi,

I just tested and managed to store Arabic text using Text Area in Joget form, with the default system locale. Did you see any error in tomcat log?

Sir its error in log 

ERROR 02 Jul 2018 12:08:13 org.hibernate.engine.jdbc.spi.SqlExceptionHelper - (conn:118) Incorrect string value: '\xD9\x83\xD8\xA3\xD8\xB3...' for column 'c_field1' at row 1
ERROR 02 Jul 2018 12:08:13 org.joget.apps.form.service.FormService - Error executing store binder
org.hibernate.exception.GenericJDBCException: could not execute statement
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:54)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:126)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:112)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:211)
at org.hibernate.engine.jdbc.batch.internal.NonBatchingBatch.addToBatch(NonBatchingBatch.java:62)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3124)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3581)

.....

and in the last 

Caused by: java.sql.SQLException: Incorrect string value: '\xD9\x83\xD8\xA3\xD8\xB3...' for column 'c_field1' at row 1
Query is: insert into app_fd_video_New (dateCreated, dateModified, createdBy, createdByName, modifiedBy, modifiedByName, c_field1, c_field2, id) values (?, ?, ?, ?, ?, ?, ?, ?, ?), parameters ['2018-07-02 12:08:13.67','2018-07-02 12:08:13.67','admin','Admin Admin','admin','Admin Admin','كأس العالم: اليوم في الكلمات: يوم 17','fdgdf','59d205e5-7f001010-1c028fdb-9c1f6f87']
at org.mariadb.jdbc.internal.util.LogQueryTool.exceptionWithQuery(LogQueryTool.java:146)
at org.mariadb.jdbc.internal.protocol.AbstractQueryProtocol.executeQuery(AbstractQueryProtocol.java:215)
at org.mariadb.jdbc.MariaDbPreparedStatementClient.executeInternal_aroundBody6(MariaDbPreparedStatementClient.java:212)
... 227 more

Problem resolved by changing the Database Charter set for latin1 to utf8 and also change the Table and column 

now the create table script is some thing like that

CREATE TABLE `app_fd_video_New` (
`id` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
`c_field1` longtext COLLATE utf8_unicode_ci,
`c_field2` longtext COLLATE utf8_unicode_ci,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci

Regards,