Fatal error: Uncaught Error: Call to undefined function sodium_crypto_sign_keypair() in /volume1/web/packages/tools/crypt/keygen.php on line 3

Error: Call to undefined function sodium_crypto_sign_keypair() in /volume1/web/packages/tools/crypt/keygen.php on line 3

Call Stack:
    0.0001     359528   1. {main}() /volume1/web/packages/tools/crypt/keygen.php:0