Post 31 in that Weather-Watch topic has a reply from Meteoalarm:
"We apologise for any inconvenience caused. We are experiencing problems with the feeds from several countries. It appears that the issues may be coming from various sources, and we are currently conducting an investigation into the matter. We are also reaching out to the relevant NMHSs to address the situation.
We are optimistic that all the issues will be resolved by next week."