Hi Martin, thanks for your quick reply.
Apparently there is something wrong with this, It was working regularly and receiving the updates since the beggining until now.
The website is with the template 2.0 installed, and with all the extensions updated, but is requiring the joomla update for 4.4.1, and everythime I start doing that, It gives me the "500 error"
Screens: https://ibb.co/zQvkQGx
https://ibb.co/LxmNV7z
https://ibb.co/5cjn25S
https://ibb.co/wWrXV8Y
Regarding the J5 for this template are you sure? in the template page is not mentioned that, and I'm still waiting for multiple projects: https://ibb.co/yR3DdFb
I've shared the access in private message.