Hi,
Issues like this are usually caused by a conflicting plugin, or the desktop theme.
You may want to check if one of the active plugins in WordPress is conflicting by deactivating them one at a time in the Plugins page in WordPress and see if you find a culprit. You can start with the plugins you suspect may be causing the issue, if you have a large number of active plugins. If that fails to work, please briefly activate a default theme like the TwentyFifteen or TwentySixteen to check if the desktop theme is causing the issue/conflict.
Regards,
Emilio Rivera
WPtouch Support
