give me advice of what to do like i face this error when i'm tring to accessing patient dashboard after instaliing openmrs vesrion 1.9.11

An error has occurred!

The following error happened somewhere on this page: javax.servlet.jsp.JspException: javax.servlet.ServletException: javax.servlet.jsp.JspException: javax.el.ELException: Problems calling function ‘openmrs:sort’

(The full error stack trace output is in the source of this page.)

Well, the full stack trace mentioned would be somewhat helpful in diagnosing what happened. Alternatively, if you’re able to get the server log that should have the same information.