The nullity of an arbitral award for lack of reasoning is established when arbitrators fail to examine and decide on exceptions timely raised by the parties during the arbitral proceedings, particularly when the exception concerns substantial aspects of the creditor’s claim in dispute.
The suspension of the enforcement of the challenged arbitral award may be granted when there is fumus boni iuris for the challenge based on nullity under art. 829 n. 12 of the Code of Civil Procedure and periculum in mora arising from the substantial amount of the credit subject to enforcement.