well it looks like a tag issue, if you have a backup of files it might be worth redoing the edits altho l cannot see how one could mess up adding two lines..
l myself use 3.6.8 PLI2 (well not l, lm just the addition to access the members area as l update and install on his site as lm pretty much the server guy

) and l know it works pretty well, however this mod doesnt seem to like working and gives an mysql error on the portal, altho lm assuming thats because its defaulting to looking within the portals plugin directory, lm sure adding something like a defining varible (my friend has the code somewhere) that points to the missing file might sort out the situation but theres more pressing issues to deal with elsewhere to worry (and well we are not using the mod yet anyways, was useful for future things like forum rules etc)