Never uninstall a module that has problems; it will delete all the data as it removes the tables from the database.
Uninstalll a module just removes the tables, it does not fix anything unless for some reason the table itself was corrupted in some way, and you should be getting database errors if that was the cause.
If you thought that the files are corrupted, then you would not uninstall the module, you would reload the files to the server from the Dolphin zip and always use binary transfer.
Have you checked your error log files; notability the php error log. Also, check the browser error console for JS errors.