Conflict With WP Job Manager & Custom Text Question

We have downloaded the Jobs & Experts plugin. Really like it, though we are having a few issues in use on our website

1. Job listings do not show, we receive a 404 error when trying to view single listing pages. We have reset the permalinks as suggested elsewhere but that did not help. We also have the WP Job Manager Plugin installed, it's a key plugin on our site. This plugin also uses the 'job' slug and taxonomy. We believe there is a conflict between the two and we need a way to rename the Jobs & Experts slug to 'project'. What do you suggest.

2. What is the best way to change the Text next to the icons on the pages? We want to rename all references to Experts.

3. Can this be integrated with a messaging system?

Thank you!