How to solve Ajax Error while recreating ETL tables

The following guide provides a step-by-step on how to resolve Ajax error while recreating tables;

• Log in to MySQL by typing mysql –uroot –p
• Enter correct MySQL password
• Choose database by typing use openmrs;
• Type call create_etl_tables();
• Type call sp_first_time_setup();
• Restart tomcat by typing sudo service tomcat9 restart