how to eliminate the error message software STAADV8i

[rachid1968]

STAAD software version installed on my V8i based laptop very well, without any error message: This version was installed for two years.
on the other computer, I uninstalled this version, when I installed an error message that blocks the functioning of STAADV8i.
after many installation operation, the problem persists.
Here is the error message that appears when I click on the icon STAAPRO.EXE