Code of Civil Procedure Article 75

When there exists a correctable defect in the advocate's authority, the presiding judge shall order the correction of the defect within a designated period of time; however, the judge may permit the advocate to conduct acts of litigation pro tempore. The provision of Article 48 shall apply mutatis mutandis to the authority of an advocate.
中文原文 民事訴訟法第75條
訴訟代理權有欠缺而可以補正者,審判長應定期間命其補正。
但得許其暫為訴訟行為。
第四十八條之規定,於訴訟代理準用之。

English translation for reference only; the Chinese text prevails. Not legal advice.