MSIR.0780 END (what) expected
An End statement had no qualifier on it when a qualifier that matched the current block start was expected. While many SOUL block structures are automatically terminated by an End without any qualifiers (also ending the compilation), many SOUL OO blocks require the block to be explicitly ended. The explicit ends avoid accidental end of compilation and a flurry of error messages because of a forgotten qualifier on an End statement.
Add the appropriate qualifier to the End statement.