Hi technician supports team,
I'm installed new template Finion for my website and found issue of updating bagi menu template option at menu template editing - backend of joomla. The messages after clicked at template option are:
InvalidArgumentException: Please specify a valid response format, other than that of HTML, such as json, raw, debug, etc.
please refer to my print screen as per attachment
![https://prnt.sc/26shulu]
Please refer to PM for details of website credential . Please help me to solve this issue.
Thank you for your early reply and prompt action