Hello @Nikitos Pro,
Please try to correct this asap.
Check this link for guidance.
If the same email address is reused in other situations (other mail accounts, websites, etc.) start changing the passwords there too. A password manager tool (for unique password generation) is recommended.
If the response helped, do "Accept Answer". If it doesn't work, please let us know the progress. All community members with similar issues will benefit by doing so. Your contribution is highly appreciated.