Hi Robin,
The main site, which does not work, uses php 5.2.17 and the development site uses php 5.4.35.
I just tried the BackUpWordPress plugin on both sites and it crashes as well on the main site.
Looks like the PHP version is the problem.
The client’s site is hosted with an outfit called dotEasy. I noticed on cPanel that all the software is a bit behind in getting updated.
My development site is on dotCanada and is working fine.
I guess I better get in touch with the dotEasy on behalf of the client and see if they’re planning on updating PHP.
Thanks for your prompt feedback.
Don