On our Performance Center v12.63 platform some of our end users see this error...
The script <Script_Example> is from LoadRunner version <126.96.36.1999>. This does not match the load generator <Load_Generator1> version, <188.8.131.52>. The script may not run properly on a load generator with an earlier or unidentified version.
Re: Script error
It is to run the LR detect tool on the problematic host, as to confirm if the 12.63 patch was successfully applied. The LR detect will point out the exact version. You can download LR detect from the link below:
If the version is the correct one, you can replay the script locally on the problematic LG, as to check if al is good. Do you see the error message here?
In case issue still persist, you can always open a ticket to the support.