Are you able to post the Solution to this problem?
OBJECT OF CLASS STDCLASS COULD NOT BE CONVERTED TO STRING
You only get the ERROR when you use the Frontend Editor, If you use the Admin Edit Page the Error does not happen.
It ONLY effects any of the ADDITIONAL CODED ADD-ON Items when you change Images in the FRONT END. NOT Admin section. Base Addons with the Page Builder are all AOK error doesn't accur.
I would like to know the solution so if I use this template again I don't have to get support.
UPDATE ITEMS FOR NEXT RELEASE:
Some Lang item that you may wish to fix within your ADMIN Lang file (en-GB.com_sppagebuilder.ini) include the following: COM_SPPAGEBUILDERADDONREOEATABLE_ITEMS Change to > COM_SPPAGEBUILDER_ADDON_REPEATABLE_ITEMS
Missing Lang COM_SPPAGEBUILDER_ADDON_BOOK_TABLE_SUBTITLE COM_SPPAGEBUILDER_ADDON_BOOK_TABLE_SUBTITLE_DESC
Running Latest Version cuisine_quickstart j3_v1.9
Server = PHP 7.4 (Have Tried version 8 still getting same Error) Both Base Install Joomla from Quick Install PLUS Updated to Latest Joomla 3.10.6 + 3 Extentions SP Pro - using a test (fresh Download version) Developed a site for a client and used the work around (admin Edit Page) in the mean time... I have used this template in the past and is working fine on my developed site.