@sharpdrivetek I could carry out only the first step ( delete the particular business file for Cafe 4 and the file with filename 0000000). Unfortunately, Cafe 4 does not open for me to take a backup…
@AA2 open the business and let it “run” on blank page for 1 hour. I’m pretty sure the upgrade script is doing its work. Obviously it shouldn’t take that long but let it run for 1 hour anyway.
Maybe using a desktop version on another more powerful computer and only importing the Cafe 4 business may speed up this process? Once completed a new backup can be made and imported on the current computer.
@lubos I let the blank page run for nearly 2 hours. Same issue.
@eko I don’t have access to another computer. I have other “heavier” business that opens just fine with the current computer.
you mentioned you can open it the first time after you import it. so import it again and if it opens, try as suggested earlier.
@sharpdrivetek Thank you for the reminder. Followed your instructions but same result. Blank page after importing the backup.
@AA2 I would need to see the business file for myself to determine what is happening, can you upload it somewhere and send me a link to lubos@manager.io ?
@lubos I have shared link to the file on the email provided. Please let me know if you are able to access. Thank you.
@lubos Thank you for fixing the corrupted file. I truly appreciate your quick assistance.
@sharpdrivetek and @eko Thank you for sharing your ideas to troubleshoot the issue. Lots of learning 
1 Like
It would be useful to know what the cause was and how to resolve it. I hope that @Lubos would shed some light on this.