The name and the institute of my co-author on the published paper are correct. I meant that on ResearGate, his institute switched from Beijing University (Peking Univeristy) to Huaihua University. The ResearGate shows a photo of Chang-Ling Li who is a conplete different person.
If the problem is on researchgate, it is probably due to automatic or erroneous attribution of an other author's identity with your paper's author. Maybe you should contact researchgate directly, to clarify the issue.