Autoresponder plugins not updating only blank pages

I have been try to install autoresponder plugins GitHub - bramley/phplist-plugin-autoresponder: Autoresponder plugin for phplist 3.x but seems it’s not working on me because when i try it to update i only get blank pages. anyone can help me there?

@aninostephen what do you mean by

when i try it to update i only get blank pages

Is the plugin installed or not? A blank page possibly means that something is missing from php. Try viewing the html source of the “blank” page to see whether there is any error message being hidden.