Can't start new year

I spent the day reading forums and trying to find a solution and I don't know what to do even though I think I isolated the source of the problem.

The problem : 

I can't start a new year. When I do so I get this error message : 

An error occurred while moving current year's data to last year. As a result, the new year could not start.

Please either restore your company file from backup or run an Advanced Database Check (in the Home Window, select this option from the Maintenance menu).

Next step : 

I click OK then I run the Advanced Database Check and I get this message : 

The Sage 50 database verification tool has found a problem in your company file that it was unable to fix. If you are having any problems opening your company file, contact Customer Support at 1-888-522-2722.

I found in the errorlog.txt document some lines with errors : 

2018-09-22 13:49:22 15128 [Note] C:\Program Files (x86)\Winsim\ConnectionManager\MySqlBinary\5.6.10\mysql\mysqld.exe: ready for connections.
Version: '5.6.10-enterprise-commercial-advanced' socket: '' port: 13540 MySQL Enterprise Server - Advanced Edition (Commercial)2018-01-29 08:27:25 7872 [ERROR] Invalid (old?) table or database name 'tbgtah03 2'
2018-01-29 08:27:25 7872 [ERROR] Invalid (old?) table or database name 'tjephh03 2'
2018-01-29 08:27:25 7872 [ERROR] Invalid (old?) table or database name 'tpys1h03 2'
2018-01-29 08:27:25 7872 [ERROR] Invalid (old?) table or database name 'tpys2h03 2'
2018-01-29 08:27:25 7872 [ERROR] Invalid (old?) table or database name 'tbgtah03 2'
2018-01-29 08:27:25 7872 [ERROR] Invalid (old?) table or database name 'tjephh03 2'

*it goes on for hundreds of lines... 

This is the exact moment where I change my computer according to the error log. I don't remember exactly what I did but I guess I exported then imported on the new computer from a backup... It has been working perfectly the rest of the years so I always thought that my transition has been done without any problem since I have all my data from years before...

I don't know if it can be the problem, but this is where I am now... completely lost and I have no idea how to get in my new year. My google searches gave me some direction to the MYSQL that could be a problem...

I tried to put all the information in my post...thanks for your help!