Error in verify signature: Cannot initialize

[VingoYang]

I am trying to verify the signature, but I got the error: Cannot initialize. Here is my code:

public static function verifySignature($hash, $signature, $address) { try { $sign = [ "r" => substr($signature, 0, 64), "s" => substr($signature, 64, 64), ]; $reCid = ord(hex2bin(substr($signature, 128, 2))); if ($reCid != ($reCid & 1)) { return false; } $ec = new EC('secp256k1'); $publicKey = $ec->recoverPubKey($hash, $sign, $reCid); return $address == self::pubKeyToAddress($publicKey); }catch (\Exception $exception) { throw new HashException($exception->getCode(),$exception->getMessage()); } } verifySignature("c230e229e1e7edd299b4c142ac105a84df7c114ef1d6c538ee9e8461f70b2ad3",""W6AdiMNBTRb/a9oa43CFnL+UjpdhJ4QuxfnVQuTY8EB0RQQ2pvWEeIF9c5oMrokVrCmtBiXe4vW3Fvu+mIZ2bwA=","0x38737be4bb9bdB44Fa4367935E087Dad925CE172");

I traced the error and found it threw out when executed to $ec->recoverPubKey($hash, $sign, $reCid);