I added that code and thankfully the slider now appears – thank you @jinbatsu!
But the settings still won’t save.
I try to disable or modify the heartbeat, checking all locations, but the settings just go right back to default as soon as I save.
I was selecting locations. Each and every time I tried.
I just updated the plugin.
Now, it no longer has the error on wordpress dashboard. However, the plugin is still not working.
I selected “modifiy” and selected all locations. It then gave me no option to change the frequency.
So instead I changed to “disable” and selected all locations. Saved settings. And all settings are immediately erased and set back to “allow”. No rules save.
I have screenshots I can sent you.
Mine is doing the same thing!