Fatal error: Uncaught Error: Call to undefined function EllipticCurve\gmp_init() in /home/mydemotec/public_html/frun/vendor/starkbank/ecdsa/src/curve.php:23 Stack trace: #0 /home/mydemotec/public_html/frun/vendor/starkbank/ecdsa/src/curve.php(102): EllipticCurve\Curve->__construct('0x0000000000000...', '0x0000000000000...', '0xfffffffffffff...', '0xfffffffffffff...', '0x79be667ef9dcb...', '0x483ada7726a3c...', 'secp256k1', Array) #1 {main} thrown in /home/mydemotec/public_html/frun/vendor/starkbank/ecdsa/src/curve.php on line 23