Do you see any further details in the HostServer logs usually at (K2 folder > Host Server > Bin)?

When you say any, are you referring to any views and forms in the environment, or just the ones that were updated in the .kspx that was deployed?

If you edit the form, view, SmartObjects do you see any errors/warning?  Can you execute the relevant SmartObject via management site or do they error also?

yes solved after removing custom control thank you