It seems like that is bug, can you try download my attached file and replace into this following file location :
JoomlaFolder/administrator/components/com_easydiscuss/access.xml

And apply this following language translation string into :

COM_EASYDISCUSS_JACL_MANAGE_PRIORITIES="Manage Post Priorities"

COM_EASYDISCUSS_JACL_MANAGE_PRIORITIES_DESC="Allow users in the group to access priorities for each post types"

JoomlaFolder/administrator/language/en-GB/en-GB.com_easydiscuss.ini

Thank you, everything is good....

Hi there,

You are most welcome. Glad to hear that your issue has been resolved now.

As a gentle reminder, kindly start a new thread if you have any other issue in the future so it will be easier for us to manage your inquiry. I will lock and mark this thread as resolved.