If the Subversion server is an older version, click the "macSvn" icon in the system status bar, execute the "Settings ..." menu item, and open the "Settings" window. Select "Version Control System / Subversion" on the left, check the "Use embedded system (OpenSSL 1)" on the right, and click the "OK" button to close the "Settings" window.
If the Subversion repository requires authentication using a client certificate, and the client certificate uses a newer version of the elliptic curve cryptography algorithm, click the "macSvn" icon in the system status bar, execute the "Settings ..." menu item, and open the "Settings" window. Select "Version Control System / Subversion" on the left, check the "Use embedded system (OpenSSL 3)" on the right, and click the "OK" button to close the "Settings" window.
If your Subversion repository requires authentication using a client certificate, and the client certificate or its passphrase you provided is incorrect, this error will also occur. Please provide the correct client certificate file (.p12 or .pfx file) and its passphrase.