Instagram Publication Programming Error

Hello,

I’m trying to schedule posts directly via the Instagram app on my phone, but after the 4th/5th scheduled post, I get this error message: “Not published. We’ll retry when the connection is better.” I’ve restarted my router, my phone, updated, closed the app, tested my connection, EVERYTHING IS OK. Do you have a solution because I really need to be able to schedule for several weeks! I think we’re limited to 1 month but I’m not even at 5 days… help

thanks in advance!

have a good day