Ebuild 3.6.12 has a missing or malformed copyright/licensing header.
[Notice] Ebuild 3.6.12 has an invalid header. It should start with a valid copyright line (e.g., '# Copyright YEARS MAIN-CONTRIBUTOR') and the GPLv2 distribution text followed by an empty line.
[Warning] Ebuild 3.6.12 has a line exceeding 80 positions on line 3.
[Warning] Ebuild 3.6.12 has a line exceeding 80 positions on line 7.
[Warning] Missing md5-cache for ebuild hmcl-3.6.12
[Error] Invalid or missing metadata.xml: open games-misc/hmcl/metadata.xml: file does not exist