Try linking to the source for example
https://www.fda.gov/media/144246/download, this document was released before the FOIA and that is a good indication that the owners of the website are trying to fool you.
Even if they were caused by the vaccine (and there is no indication that they were) the mortality rate from the vaccine would have been less then 0.1% compared to the mortality rate of 2% from covid. The smart thing to do in those situations is to take the vaccine. Emotionally that would not be so easy and people would freeze like dear caught in a car's headlights.
It doesn't, even after the yearly flu vaccine (or any vaccine) I am asked to hang around for 15 minutes to make sure I don't have an allergy.