Only one User is unable to access those pages in spite of having the requisite permission to view the pages and there is no view/edit restriction applied to those pages.
Please find the error logs below and suggest the needful:
2018-06-18 07:19:27,568 ERROR [exec-30] [atlassian.confluence.servlet.ConfluenceServletDispatcher] sendError Could not execute action -- referer: https://associates.*******.com/accounts/openid/return | url: /pages/releaseview.action | userName: ********** java.lang.RuntimeException: Error rendering template for decorator root at com.atlassian.confluence.setup.velocity.ApplyDecoratorDirective.render(ApplyDecoratorDirective.java:202) at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:175) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:336) at org.apache.velocity.Template.merge(Template.java:328) at org.apache.velocity.Template.merge(Template.java:235) at com.opensymphony.webwork.dispatcher.VelocityResult.doExecute(VelocityResult.java:91) at com.atlassian.xwork.results.ProfiledVelocityResult.doExecute(ProfiledVelocityResult.java:21) at com.atlassian.confluence.setup.webwork.EncodingVelocityResult.doExecute(EncodingVelocityResult.java:48) at com.opensymphony.webwork.dispatcher.WebWorkResultSupport.execute(WebWorkResultSupport.java:116)