How to parse + (plus) sign in String comparsion operations

Debug log gives me an error on string comparsion of the first condition: Code: <variable name="VideoresolutionFullScreenVar"> <value condition="String.StartsWith(Player.Process(amlogic.eoft_gamut),HDR10+)">flags/fullscreen/hdrplus_fs.png</value> <value condition="String.StartsWith(Player.Process(amlogic.eoft_gamut),HDR10)">flags/fullscreen/hdr_fs.png</value> <value condition="String.StartsWith(Player.Process(amlogic.eoft_gamut),HLG)">flags/fullscreen/hlg_fs.png</value> <value condition="String.StartsWith(Player.Process(amlogic.eoft_gamut),DV)">flags/fullscreen/dv_fs.png</value> </variable>...