So I enacted their peace decision and now I cannot declare war against the civilization in quest AT ALL. It's been over 50 turns and I've been waiting for the peace treaty that was never in place to expire so I could finalize my conquest but there DECLARE WAR has disappeared. It's really frustrating because I've literally surrounded his capital in citadels, put up 8 cannons aimed at his city and have no ability to conquer it... It's really silly. :/
Please post your lua logs.