Notice: Undefined index: tahun in /opt/lampp/htdocs/portal/graphBulanPL.php on line 5
Fatal error: Uncaught TypeError: Argument 1 passed to JpGraphException::defaultHandler() must be an instance of Exception, instance of Error given in /opt/lampp/htdocs/portal/jpgraph/jpgraph_errhandler.inc.php:159
Stack trace:
#0 [internal function]: JpGraphException::defaultHandler(Object(Error))
#1 {main}
thrown in /opt/lampp/htdocs/portal/jpgraph/jpgraph_errhandler.inc.php on line 159