Error: "Another Sage 50 user or workstation is accessing this company area or performing a similar company process" and there are damaged files in the data path

Close Sage 50 on all computers.
Browse to your data path. How to find data path and program path.
Search for and rename each of the following files by adding old to the front of the file name:
- ENVSESS.DAT
- ENVUSER.DAT
- ENVSETNG.DAT
- LGNSESSN.DAT
- SERIAL.DAT
- SERIAL.DAT.BAK
- Entitlements.xml
- SoftwareInstallations.xml
- Clientinfo.xml
  Any files ending in LCK
- Any files ending in PTL Note: If you are unable to rename one or more of the files, go to the server and follow How to close open files on Server 2008/2012/2016, Windows 7/8/10 or How to close open files on Microsoft Windows Server 2008 R2 and 2011
Re-open Sage 50. Activate the program and verify that you are able to work without getting the error.