jf_connecto_cb_20

Does jf_connecto_cb_20 uses RocketTheme or gantry or Joomforest? I am having an error in gantry system while updating PHP and it relates to gantry system. The only thing I can trace it is back to March 21, 2016, RocketTheme, LLC, same date of jf_connecto_cb_20 installation or it is just a coincidence, but it looks like Joomforest, LLC has a jf_connecto_cb_20 and before I uninstall gantry just want to make sure I do not break anything else. I do not see gantry being used in anything else and gantry it is only use for templates. The error manifested when move to PHP 7.4.20 and now that I am trying to go to PHP 8.0.7 it manifested there as well and it looks it does not affects gantry 5.

Error: "Fatal error: Array and string offset access syntax with curly braces is no longer supported in /home/customer/www/____.com/public_html/plugins/system/gantry/functions.php on line 44"

We're not the developers of jf_connecto_cb_20. Suggest contacting JoomForest. What templates we provide can be found below, but they are deprecated and will not be updated for Joomla 4. We've plans to develop a frontend and possibly backend template for Joomla 4 sometime in the future though that won't be dependent on any sort of template framework.

www.joomlapolis.com/joomla-templates

I thought that jf_connecto_cb_20 was included as a CB plug-in, but if it is not needed and it does affect the CB functionality, can I uninstall it?

I believe that's their CB template that goes with their Joomla template. We're not the developers of jf_connecto_cb_20. Yes, you can uninstall it if you're not using it.