Go to CodeBlocks/share/codeblocks/plugins and delete:
compilergcc.dll
debugergdb.dll
pluginwizard.dll
cbprofiler.dll
Those plugins changed their names a while ago, but they're still being provided (with the new names) so it's safe and wise to delete the old ones.
You surely installed a new Nightly over an old one and that's why those errors arose.