I am having an issue trying to install applications and plugins on Invision Power Board 4.4.10. It says "Sorry, you do not have permission for that!" It gives the error code 1S111/1. I am on the Admin account.
I am using:
IPB 4.4.10
Internet Information Services (IIS) Manager 8.5 on Windows Server 2012 R2 Standard
PHP 7.3.13
Any help would be appreciated and if you need more information to help solve the issue, please comment below and I would be glad to answer.
P.S. - I am somewhat new at web hosting so please excuse my ignorance.