When I try to log into Minecraft, I get an error message.

This is a technical support issue, so we are unable to help. Please contact Minecraft Support for help with this issue.

Thank you for your report!
However, this issue is Invalid

This is a technical support issue; this site is for bug reports only. We do not have the resources to provide you with technical support.
Please contact Community Support for assistance and refer to this ticket by providing a link.

Quick Links:
📓 Bug Tracker Guidelines -- 💬 Community Support -- 📧 Mojang Support (Technical Issues) -- 📧 Microsoft Support (Account Issues) -- 📓 Project Summary -- ✍️ Feedback and Suggestions -- 📖 Game Wiki