History days issue

    <entry key="database.cleanupInterval">86400</entry>
    <entry key="database.historyDays">50</entry>
    <entry key="database.saveOriginal">true</entry>
    <entry key="report.fastThreshold">10800</entry>

my historyDays are 50 only still it's storing 2-year-old data in my tc_positions table.

What version?

Version: 5.12

Then your parameters are completely invalid. Some of them never existed, some very outdated.

https://github.com/traccar/traccar/blob/v5.12/src/main/java/org/traccar/config/Keys.java