TCPDF error: Unsupported image type: 66&chl=spd%20(17,94)|cdu%20(34,12)|pds/die%20linke%20(23,14)|gruene%20(3,75)|fdp%20(7,39)|sonstige%20(13,66)&chco=cc0000,cccccc,ff99ff,8fbc8f,fafad2,eeeeee