Hi @haktansuren,
please check screenshot on the link given below. Check handl-utm-grabber/handl-utm-grabber.php -> CaptureUTMs method.
This code is added a shortcode [email] for loop array. So as contact form 7 already has a shortcode [email] your plugin email shortcode overwrite it and on the frontend when the form loads it doesn’t have email field.
Please try this on your local environment, create a contact form 7 form with email field and check frontend page the email will be gone.
https://prnt.sc/NvjbyOuiXP-L
Please prefix your plugin shortcodes so it doesn’t conflict with other plugins.
Thanks!