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I've been getting this error for 4 days now while trying to pay with paypal (which hadn't happened before). Is it just me or did nyone else also got it?

Codes like [box gray] [box yellow], etc... doesn't work for me anymore for some reason when I use the Post a new thread function. P/S: Okay, I don't know why it works now, but I literally spent 30 minutes trying and failing before I posted here. Sorry for the inconvinient.