Forum Thread: Help! I Have Big Issues

When i tried using tampar for bWAPP low security level it worked fine but when i change to medium level and i did the same exact process, it didn't work it showed me this

Sorry, the file extension is not allowed. The following extensions are blocked: asp, aspx, dll, exe, jsp, php

what can i do to bypass this, because this is my only issue now, i need help plss guys.