Getting un clear error message

[HakamSaffour]

Use Case (delete as appropriate): Using Portainer at Home
Have you reviewed our technical documentation and knowledge base? Yes

Question:
I have Portinaer running on Synology NAS, everything was working file till yesterday, as I try to create a new Stack, I got the following error message:
Deployment error failed to deploy a stack: Creating network "dashy_default" with the default driver could not find an available, non-overlapping IPv4 address pool among the defaults to assign to the network : exit status 1

I googled the error message but I did not find anything

I updated Portainer from 2.11 to 2.13.1, but this does not help to solve the issue

any advice

[samdulam]

@HakamSaffour
Portainer has tried to create the necessary network and failed. The error message shown is the message from docker itself.
The following article might help
https://stackoverflow.com/questions/43720339/docker-error-could-not-find-an-available-non-overlapping-ipv4-address-pool-am

[HakamSaffour]

docker network prune
solved the issue
Thank you @samdulam for your answer