修复添加管理员报错

Application/User/Model/UcenterMemberModel.class.php

@@ -109,6 +109,7 @@ class UcenterMemberModel extends Model{
 			'second_pwd' => $second_pwd,
 			'email'    => $email,
 			'mobile'   => $mobile,
+			'openid_sign'=>''
 		);
 		
 		//验证手机
@@ -117,7 +118,11 @@ class UcenterMemberModel extends Model{
 		if($data = $this->create($data)){
 			$data['username'] = $username;
 			$data['email'] = $email;
-			$status = M('UcenterMember', 'sys_')->data($data)->add();
+			try {
+				$status = M('UcenterMember', 'sys_')->data($data)->add();
+			} catch (\Throwable $th) {
+				$status = false;
+			}
 			$uid = 0;
 			if ($status) {
 				$uid = M()->getLastInsID();