All/any requests to the colama-server take inordinately long to get a response.
most likely scenarios is that dnsmasq on the colama-server has been configured with an upstream name server that can no longer be reached.
Recommendation (needs Administrator privileges):
Either avoid referring to upstream nameservers
by commenting it out the line starting with "resolv-file=" and optionally uncomment the line that starts with "no-resolv" in the file /etc/dnsmasq.d/dnsmasq.conf,
provide a valid nameserver entry in the file /etc/dnsmasq-upstream-resolv.conf