The net work path was not found?

More detail would be extremely useful.
What are you attempting to do ?

When I try to connect to shring I type \\192.168.0.11 I found message says Network pass was not found

I assume you are attempting to connect to a share on another machine, in this case .11.
Have you verified that this machine is indeed operational and still using the .11 address ?

My machine ip 192.168.0.12 and I try to connect to 192.168.0.20 and I write \\192.168.0.20 in run I found message say The net work path was not found and I close the firewall and I can't connect what can I do?

Add the share name to the end as well, so \\IP\SHARE.
Also have you verified that these machines are indeed on these IP's?

I can ping from my PC and replay to me I use cmd then ping 192.168.0.20 and replay to me and I see shirng from next PC but I can't see it from my PC