Whenever I upgrade MS Membership Suite, and then I access the top-level moneyscripts admin area (/admin/moneyscripts), I get the error:

Fatal error: Unsupported operand types in .../modules/system/system.module on line 627

I solved the issue by going to /admin/build/menu-customize/navigation and clicking the edit link for the top-level MoneyScripts menu item, then clicking the save button. This seems to effectively rebuild the menu, I believe. After I do that, I'm able to access the MoneyScripts admin area again.

This may actually be a Drupal issue, so I'm going to report it there too, but it does seem to happen just with the MS Membership Suite modules after I upgrade. Not so on other modules that get upgraded, so I thought I'd share here, too, in case someone else has the same issue.

Also, I moved the MoneyScripts admin menu items under the Site configuration menu item, so maybe this is non-standard enough to cause this error after upgrading.

Hope that helps.