I have the same issue. Eclipse seems very fragile for plugin issues. This error occurs in Marketplace showing the currently installed components. The error log just duplicates the same message from the Marketplace UI: MarketplaceDiscoveryStrategy failed with an error Unexpected response for '2963451,661,1794107,3519199,2755329,2706327,2177882,507775,3581018,2894763,1336,4716941,150,4706981,1617241,1099,1789419,3536358,2568658,5585660,3644319,593,1549,2963400,1963651'

One suggestion: Try to update the components with Help -> Check for updates. It will probably fail with a message similar to ''No repository found containing: ...'. Try fixing the Eclipse Configuration Update sites (removing no longer valid sites), updating everything except for those plugins, and reinstalling those failing component updates. In my case these plugins were problematic: Dbeaver, sonarlint, spotbugs. YMMV.