You have Opencart 3x installed. If you have a module installed but you get a no permission or permission denied error when you try to access the module;
System
Users
User Groups
In this section, by entering the user group you are connected to, you can access all; Our problem will be solved when we select and save it.
If the module you are trying to reach is loaded; and the link of the module is never in your panel; If it doesn't appear, you can check the link and apply the following operations.
You can check for index.php?route=extension/module/blog for checking. Blog module We have checked for this, you can write whatever module has a problem. You can add the following text inside the data in the permission cell to the line belonging to the group you are connected to.
,"module\/blog"
You will be able to view the page you want to reach after adding and saving our text between the authorizations in this way.