clarkwinkelmann that error must be linked to Imgur. They must have restricted your API key or your IP.
I tried to get the api client id credits. The response for the curl get I did was:
{
"data": {
"UserLimit": 2000,
"UserRemaining": 1999,
"UserReset": 1620774088,
"ClientLimit": 12500,
"ClientRemaining": 12499
},
"success": true,
"status": 200
}
It doesn't look like that the IP got restricted. Seems to be broken somehow. This is weird. 🙁