A public database that collects reports of vaccine side effects isn’t considered a reliable source of information about risks associated with COVID-19 vaccines.
Established in 1990, the Vaccine Adverse Event Reporting System (VAERS) collects reports of potential side effects from licensed vaccines. Interest in the database, publicly available online, has grown since COVID-19 vaccines were approved, but the data can be misleading if used to make a direct connection to the reported deaths and injuries.
Source: MLive
https://www.mlive.com/public-interest/2021/10/vaccine-injury-database-considered-unreliable-subject-to-biases.html