.

app/admin/service/member/MemberService.php

@@ -45,7 +45,7 @@ class MemberService
                 $query->where('member.member_mobile', 'like', '%' . $mobile . '%');
             })->when($level != '', function ($query) use ($level) {
                 if($level == 'other'){
-                    $query->whereNull('member.join_member_role_id');
+                    $query->where('member.join_member_role_id',NULL)->orWhere('member.join_member_role_id','');
                 }else{
                     $query->where('member_role.member_role_id', $level);
                 }