Cakewalk Plug-in problem

Hi, I'm experiencing incredible slow export times and I think its because of this
 
The following plugins are referred to by this project but could not be found. They may be missing or improperly installed on your system...pentagon 1 synth rack, Plogue chip 32 synth rack
 
I also get this message for chip speech
 
Can't find the install directory, please reinstall
 
I remember deleting these tracks but the file is still looking for them. Earlier versions of the file before I included and then deleted these synths export audio fine. However, I don't want to have to create a new file and set up all the tracks again so was wondering is there a fix for this? I'm also using Plogue Alter Ego for a vocaloid, I tried deleting that too and opening the file yet I still see chipspeech under the vst browser despite all Plogue associated tracks being deleted.

Thanks that worked. I'm using Sonar x3. I was convinced that was the source of the problem but apparently not, still experiencing a glacially slow export time. I just tried to export there and the progress meter is blank. Whenever I try to export in other files, it will be much quicker.