Solr search multilingual synonym support

Solr search multilingual synonym support

Setup

• Solr version: 8
• Drupal Core version: 10.4.1
• Search API Solr version:4.3.7
• Configured Solr Connector: Pantheon

Issue: Facing Issue for configuring multilingual languages.
How to change the schema.xml and synonyms.txt file for supporting other non latin languages eg: arabic to search for synonyms.
When I am adding the arabic words in synonyms_ar.txt file , I am not allowed to post the schema and server becomes unavailable.

Below are the code files:
1) schema_extra_types.xml

2)schema_extra_fields.xml

3)synonyms_ar.txt

الذوبان ,فوري
drupal, durpal