I believe you need to (re)claim authorship. Please go to the publication page on ResearchGate by clicking on the title. Then, click the 'More' button at the top right of the page and select 'Claim authorship - is this your work?' You may check https://help.researchgate.net/hc/en-us/articles/14292798510993-Authorship for more details.
2. Contact the publisher: Reach out to the publisher of each publication and explain the situation. Provide them with the details of the publication, such as the title, authors, and publication date. Clearly state that you need to correct your name in the publication.