If you see database errors, your site is to SQL injection.
A basic dork like inurl:index.php?id= — without any additional keywords — can be used by penetration testers to find potential SQLi test candidates. The same query can be used by malicious actors to find thousands of vulnerable websites within minutes. inurl index php id 1 shop free
What your shop uses (WordPress, Magento, custom PHP?) If you currently use a Web Application Firewall (WAF) If you see database errors, your site is to SQL injection