[MC-87281] Kicked from server when using /blockdata and /give for coloured signs

This happened when I put this command in a command block and placed the given sign:

/give @p sign 1 0 {BlockEntityTag:{Text1:" ",Text2:"{text:\"Players Remaining\",bold:\"true\",underlined:\"true\",color:dark_blue}",Text3:"{score:{name:\"Players:\",objective:\"Remain\"},bold:\"true\",color:yellow}",Text4:" "},display:{Name:"Custom Sign"}}

And the blockdata one is here:

/blockdata ~ ~ ~ {Text1:" ",Text2:"{text:\"Players Remaining\",bold:\"true\",underlined:\"true\",color:dark_blue}",Text3:"{score:{name:\"Players:\",objective:\"Remain\"},bold:\"true\",color:yellow}",Text4:" "}

The game immediately crashes and gives everyone on the server the error attached as a screenshot below.