Where did you read that Formidable has a table named frm_reports? This is Formidable's database schema: https://formidableforms.com/knowledgebase/database-schema/. It hasn't changed for a very long time, but there has never been a frm_reports table. If anything, it should be updated with the new subscription and view layout tables that aren't included yet. Timeouts are usually due to the PHP timeout property being set too low. That's something you have to fix at the host level. Please start with the PHP settings in your host's console.