Werk #4589: Fixed error handling for graphs if graph is not found or unavailable

Component	Reporting & availability
Title	Fixed error handling for graphs if graph is not found or unavailable
Date	Apr 19, 2017
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	1.5.0i1 Checkmk Enterprise (CEE), Checkmk MSP (CME) 1.4.0b6 Checkmk Enterprise (CEE), Checkmk MSP (CME)

To the list of all Werks