@Tasnuva Wahed Hi Tasnuva,
the binary logistic regression is part of the regression module add an that needs to be included on your license and purchased.
If you open a new syntax window with File - New - Syntax and run below command you will get a table on output that shows, which modules are currently included in your license.
If IBM SPSS Regression module is not on the list, you need to purchase it at IBM Sales or the vendor where you purchased SPSS version 26.
Command:
SHOW LICENSE.
------------------------------
Bettina Weber
------------------------------