When installing Motopress Hotel Manager, sometimes the user groups associated with the plugin e.g. ‘Hotel Manager’ are not present.
If the permissions are not there, you can search the database of a site that is working for ‘jtg_user_roles’ where ‘jtg’ is the table prefix.
Then browse the row in the ‘jtg_options’ table and copy everything in the ‘option_value’ cell from that database into the same place in the new site’s database.