This article explains why you have problems with installing or activating the "STM Configurations" plugin and how to fix this problem.
If you have problems with installing or activating the "STM Configurations" plugin check the following points on your site.
- Make sure that the theme is activated via token key correctly [Manual].
- Check if you are using the latest version of the theme in your site. You can see theme changelogs here: https://support.stylemixthemes.com/theme-manuals
- The version of PHP should be above than 5.6 [System Requirements]