For a couple days now Google hasn't been able to connect to my hubitat hub. I have also noticed I cannot open the hubitat package manager app and Alexa is also broken.
I have downgraded to Platform Version 2.3.4.117 and now I have noticed the hub cannot find any updates. It just says Checking for update... forever.
Looking at the logs I see a similar errors that all look like this.
It appears that your hub is not connected to the Hubitat Cloud Server. By any chance, did you recently configure the network settings on the hub to use STAIC IP addressing instead of DHCP? If so, try going back to DHCP and most likely things will start working again. You can reserve an IP address for the hub in your router's DHCP server settings.