While the other game services are online, there is currently an ongoing issue with the content server which might result in errors during updating or downloading FiveM. The collective is working hard to fix these issues and will update you as more is known, there is currently no ETA.
Any updates will be announced in this topic, status page and the fivem-support channel in the Discord.
https://status.cfx.re/incidents/y1mgvmxr1fgg
Do not reinstall FiveM, you will be stuck until fixed