The error says that you need to re-open the map in radiant and save it again to fix it, but, as you can´t open radiant, try to check the mod tools and bo3 files integrity, this should fix the radiant error and maybe, the compile error also, if you don´t know how to check the files integrity, here´s a Steam support tutorial, really easy and fast,
https://support.steampowered.com/kb_article.php?ref=2037-QEUH-3335&l=portugueseHope it helps.
