1. Retrieve the password: There is usually an option to retrieve the password on the registration website. You can follow the system prompts to retrieve your password by registering your mobile phone number or email address.
2. Contact customer service: You can try to contact the customer service staff of the registration website, explain the situation and provide relevant certificate information, and seek help to solve the problem.
3. Go to the site: If the above two methods can't solve the problem, you can go to the Human Resources and Social Security Bureau of Weifang High-tech Zone (or the relevant recruitment unit) for on-site consultation and help.