The Problog addon is listed as associated with my project. I go to extend c5 (5.7.5.6) and the addons I purchased are not listed in Awaiting Installation nor Currently Installed section. Anyone know how this addon is supposed to be installed? I have 2 other addons I purchased as well that is doing the same thing. The free addons I associated are listed in the Awaiting Installation and I was able to download and install them.

Not sure what is wrong. Thanks in advance.