Qlik Sense Expert

I need to fix a problem in one of my Qlik Sense report. The problem is i miss some data when it was not entered before, i also catch this data not to miss

Ideal Skills and Experience:
- Advanced knowledge of Qlik Sense
- Previous experience in transitioning between data analytics software
- Proficiency in working with SQL and NoSQL databases
- Strong understanding of data visualization best practices
- Excellent communication skills

Please provide examples of past projects and your approach to transitioning data analytics tools in your proposal.