Freeze web access ( lost ping) freeze openDTU since last firmware 25.1.14

[steflp]

Hello
i ve updated to latest firmware since 2 weeks but i ve some problem ...
I survey my openDTU with kuma service ( by ping) and I lost ping and access web ...

I must reboot DTU to return to normal operation

Some times ( when sun is down , my inverter stay with some power not like this :

for example today :

Where can I download some logs to help me ?
My openDTU config :

since 2 days My grafana :

Can someone have same problem ?
Thanks