A timely filed request for arbitration does not prevent the running of the time bar prescribed for the challenge of a shareholders’ meeting resolution pursuant to Article 2388(4) of the Civil Code where the arbitral proceedings are declared inadmissible for failure to prosecute pursuant to Article 816 septies of the Code of Civil Procedure and the subsequent ordinary court proceedings are commenced after the expiry of the said time limit, given that the ineffectiveness of the acts of the proceedings declared inadmissible extends also to substantive effects, save for specific statutory exceptions, and the interrupting effect peculiar to limitation does not apply in matters of forfeiture of rights.