This is not a valid Tab trigger. Triggers can either contain alphanumeric characters (or _, : and .) or a single (non-alphanumeric) character like: {, [, etc.
Chan e trigear taba dligheach tha seo. Chan fhaod a bhith am broinn trigeir ach caractaran a tha nan litir no àireamh (no _, : is .) no caractar a-mhàin (nach eil na litir no àireamh) mar : {, [, agus msaa.