The problem occurs on all URL pages while the weather module is active. I've updated the frontend login URL in the credentials section above. To replicate, simply go to main menu "Staff" > "Create an Article". From there, just try clicking the "Document" button below the editor (as pictured in the previous screenshots). Please let us know if you need any further information!
You can install the module on another page to avoid conflicts
Hope you understand and look forward to receiving sympathy