Add-on blocks = "Failed to fetch template list" error

Ofi - I apologize for my delayed reponse. I've put a DropBox link for you below with the Zip file you requested.

Ofi, I have this same issue with other sites on this host. This, however, is the newest, simplest, and cleanest installation. If you can tell me how to fix the problem here, then presumably I can fix my other sites as well. Warmest regards, Andrew

Hi Ofi! That's HUGE progress, thank you! Except.....
The moment I put in the license key, we're right back to the original problem "Failed to Fetch Template List". (The site here is www.hair-reno.ca)

2. I then removed the license key, and that fixed the problem, though of course then I can't use the blocks without registering the license key.
3. I then reinstalled the license key and got back the same blocks error: "Failed to Fetch Template List" This time, however, this error did not go away by removing the license key.
4. I have the same problem with any other site. For example: www.sonicshock.com. I've given you both log-on details and an Akeeba back up of that site below.
5. If you are able to effect something, if possible would you be able to tell me what you did (assuming it's something I can do at this end)? I have two other sites to fix (for the moment), and don't want to keep runing back to you for a fix. Warmest regards, Andrew

Update: removing the license registraiton allows the blocks to load in both sites I've given you here. BUT, adding the license back isn't recognised by the blocks who still are marked "Buy Pro". (The other aspects of SP Pagebuilder do work.)

I'm pretty sure that if the the blocks did recognize that this was a registered/licensed verison, then it would fail.

Thank you for taking the time to do that experiment Ofi.

Okay, well first you're using a deprecated version of PHP (7.4). Not that I think that matters, as I couldn't fix the problem going back to 7.4 (but at least one other of your users did), but then, what other stuff is your server running that's dated?

Next, so I contact GoDaddy...and tell them...what? That some obscure function of a web app I'm running on Joomla doesn't work when I enter your licence key? You have to give me some clue as to why entering your licence key in Joomla throws up an endless error loop "Failed to Fetch Template List" when attempting to load those blocks. The templates load fine, as do my own saved blocks. What have you done differently with those pre-configured blocks?

Looking at the error logs, you appear to have a syntax error in your code for the Google Maps add-on. I never use it, BUT it appears your blocks do, because loading them (even though inactivated because the only way I can load the list is to remove the license key), throws up these errors:

[Warning] Google Maps JavaScript API has been loaded directly without a callback. This is not supported and can lead to race conditions and suboptimal performance. For supported loading patterns please see https://goo.gle/js-api-loading (js, line 216, x2)
[Warning] Google Maps JavaScript API warning: NoApiKeys https://developers.google.com/maps/documentation/javascript/error-messages#no-api-keys (util.js, line 64)
[Warning] Google Maps JavaScript API warning: InvalidKey https://developers.google.com/maps/documentation/javascript/error-messages#invalid-key (util.js, line 64)

That's done. Thank you for your time and attention.