The plugin is active but the text file isn't

Sorry, it was my caching software.

Hello,
All done correctly but txt file is

• inactive

as you can see in the following image:
[url=https://postimage.org/][img]https://s11.postimg.org/aax5q7fg3/ssfsfsfafa.jpg[/img][/url]
[url=https://postimage.org/index.php?lang=french]hébergeur images[/url]
Even if it is my caching software – what’s the “caching software” ?
Hope for answer though topic is resolved, maybe this will help others to …

Sorry, the image should be here:
https://s11.postimg.org/aax5q7fg3/ssfsfsfafa.jpg

A .txt file will always show as inactive on the plugin editor regardless of its usefulness.