Ejabberd 2.1.5 doesn't work with mod_shared_roster_ldap 0.5.2 (which is currently in Portage tree). Please bump mod_srl version in ebuild and ejabberd revision. Patch attached.
Created attachment 250723 [details, diff] Patch for ejabberd-2.1.5-r1.ebuild bumping mod_srl to v0.5.3
Thank you Nickolaj! Fixed in the tree.