Error occured during hotfix import
I'm trying to install Pega Marketing 7.3.1
When I import Pega Marketing hotfixes HFIX-41138, HFix-46683, HFIX48491 I'm facing the error below
19-Dec-2018 19:33:19.868 SEVERE [http-nio-8088-exec-3] com.pega.pegarules.internal.bootstrap.PRBootstrap. Problem during method invocation (doPost)
I have attached the complete stack trace of this error. Kindly help to sort out this issue.