I understand you are having an issue with the app.
Kindly follow the instruction below to work around this issue.
1. Reboot your device, restart the internet connection, and relaunch the app.
2. Try to perform a Reset catalog.
3. Switch between other sources.
4. If the issue still persists after, please try to log out and clear the app’s cache.
Please let me know if one of the solutions provided above works.
None of that helped me. Now that I've reset the catelog, Manga rock source (any manga) first says 'Failed to load chapter' and has a Retry button. Upon Retry it just clocks. All other sources say 'Failed to load chapter',and have an Identify or Detect (or something, i forgot) button that redirects to the website of the source and says that the source is blocking manga rock, download or try and view in manga rock source (which doesn't work either. Android 7.0, manga rock 3.2.2