Hello , I have com_sppagebuilder_pro_v3.8.7 , (Version com_sppagebuilder_pro_v3.8.8 is tested on 3different servers and break menu site, buttons, etc, and on contact form gives error Prohibited input U+00000020, so i need to use version 3.8.7 ) and contact form is not working and message is not recieved, inbox spam, etc , i sent video: https://somup.com/c3jYIGUcGQ

I have my website online, please advice me with this. In administrator, all are good Recipient Email and From Email are not empty

Thanks