[SOLVED] CB - Fields Responding Slowly

:woohoo: Hi Kyle, I can't express sufficiently my gratitude for your assistance.
I attempted to open the "Field Manager" in FireFox and the form opened a lot quicker, but I got the following error message (attachment 1, "Addfld004").
I attempted to debug the error and got a message indicating the script was "Black Blocked" which I ended and got the second screen (attachment 2, "Addfld006).
Sorry, the highlighted area in the debugger ended up being six (6) pages which is attachment 3, "ScriptError.pdf"
It takes about 1 Min to populate the "Add" or "Edit" field page in the FireFox browser, 3.25 Min in the "Chrome" browser.
Will await your response prior to upgrading to 2.0.9
Thanks again.

Sounds like you've a 3rd party jQuery usage conflicting from somewhere. Typically in backend the only way this can happen is through a Joomla system plugin. If you're using some sort of jQuery compression or optimization extension then disable it and see if your issue persists. You don't need to supply the raw script as that's just a minified copy of jQuery which has nothing wrong with it. Any actual errors would be under Console.

I either "Unpublished" or "Deleted" every plug-in to include Kunena and Uddeim until I was down to the CB Core but was unable to resolve the "Slow" Field Manager.
I did get it resolved by uninstalling "CB" and starting over with CB 1.9.1 and updating through 2.0.9. Field Manager appear to be working fine now. However, I have a new problem with "Activity" and a "Fatal Error". See attached image. Should I open a "New Topic"?
The top portion of the image is the Fatal Error Message up to 4258. The bottom portion within the box is the content of the file at line 4258.
Thanks for the time to consider my situation.

Install CB Activity 3.0.0 RC2. That's caused by Joomla uninstalling library extensions then reinstalling on upgrade installs. We had to move our plugin library files location to CBs component folder to avoid this from happening in the future.

Okay, now help a rookie out and explain how I fix the "Fatal Error" issue with "Activity".
Thanks a Million!!!

Please read my previous reply. Installing CB Activity again will fix it. We also don't support downgrading so my installing CB 1.x over CB 2.x you likely damaged your install (no Joomla extension supports downgrading, there's no Joomla installer functionality for this really).