Welcome the Technical Support section. Help us in assisting you by providing us with a concise and descriptive elaboration of your issues. Be specific and if possible, provide us with a step-by-step instruction in replicating your problem.
JomSocial 2.6.2 is very old version and it's no longer supported, even modules/plugins for this versions are not longer available. Did you consider upgrading to the latest 3.1.0.2 version?