Run the below tool on server machine, it will remove unwanted data.
Tool Link: https://ezeenextgen.s3-us-west-2.amazonaws.com/download/eZeeFrontDeskTools/Datadoctor_RAW_Rollback.exe
Steps to run the tool:
1) Go to the server machine (If the server/ Client environment).
2) Take the database backup first.
3) Stop/ Close all the eZee applications.
4) Download and run the Tool in C:\Program Files\eZee\eZee FrontDesk NextGen 7.0.
5) Check the eZee application and make sure all go well.