After upgrading the Filemaker pro version from 19.1 to 19.5 getting the error “This version cannot run with expired maintenance”

Fix1 :
As the error shows “version cannot run with expired maintenance” means the existing license got expired, so just enter the new license.

Fix2 :
If you have a previous version installed, but with this certificate expired error, the solution is as follows:

Go to the : Users / Shared / FileMaker /FileMaker Pro / 19.0, Just delete the 19.0 folder, then install the updated FM version . When you run the new FM app, it will ask you to enter the serial number so enter the new serial number and start working.