Error with license when installing Creo

I recently deleted Creo after having several problem codes (-9) and thereafter (-1) which came out of the blue. I tried following recommended steps, but after these didn’t work, I deleted Creo and every file related. When trying to download again, everything goes smooth until I try to install my university license, where it simply says “ERROR” under the license. I am now just a bit lost, and can’t find any solutions to the problem.