SpotifyOauthError Invalid client

[okruge]

Plan

Premium

Country

Norway

Operating System

Windows and Ubuntu 18

My Question or Issue

Hi! I am delivering a master thesis on music recommendation based on content-based filtering. In that sense I am required to use the spotify api to both get audio features and create playlist containing the recommended songs. This has gone smoothly the past months however, yesterday I got the following error-message provided as attachment when i connected to a new dashboard. I am 100 percent sure I have set client_id and client_secret to the correct ids. However i still get the following error message which indicates that something with these ids went wrong. Does somebody have any experience with this error? I am using spotipy and python 3.7. 
There is also worth mentioning that I am pretty sure I was rate limited by spotify the day before I changed dashboard, as I sent too many requests for the artist genre to their API and therefore tried to create a new dashboard to be able to send requests again.

Additionally sometimes (maybe 1 out of 30 times) the error message is not displayed and I am able to receive information again, which is very weird. Please help me as I am in desperate need to use the API again to be able to conduct a user survey to finish my master's this week. Any help are appreciated :))