Hi StephenMartin,
After trying Jason's suggestion about moving the "webassist" folder, I also then received the same fatal error as you
Fatal error: Cannot redeclare rel2abs() (previously declared in /home/content/s/t/e/stephenmartin/html/willempat/webassist/framework/library.php:19) in /home/content/s/t/e/stephenmartin/html/willempat/WA_CMS/library.php on line 21
I then just moved on, but I am also looking for a solution.
Larry