The "Modulus Mismatch" error occurs when the Private Key on your server does not match the SSL Certificate you are trying to install .
- Cause: This usually happens if a new CSR was generated but the old private key is still being used, or vice versa.
- Solution: You must ensure that the Certificate, Private Key, and CSR all share the same "Modulus." If you cannot find the matching key, you must Reissue your certificate in the Hostaday Dashboard using a freshly generated CSR .
