Seems to be a bug with the spell failure script. Kelemvor as a diety, with the domains protection and travel, were invalid.
Kelemvor spell failure
Kelemvor Deity Profile NwN Domains: Protection, Strength, Sun
Sorry, Dodo, I fear my ignorance may have confused you. Let us know if those domains don't work.
Travel is a domain listed in source books for Kelemvor, but was not included in our setting. The addition of the Strength and Sun domains replace it.