[Steell]

Originally Posted by Sandfly If you could assist us in whatever might be causing that error we would be most appreciative, as we'd love to have this plugin operating as per normal.

You need to put your maps in at least one Group. Right now, the plugin is reading each of those maps as an empty group, which is why it's reporting that there are no maps. A quick fix:

"random_rotation"
{
    "Default" //Name this whatever you want.
    {
        "fy_dustworld-x" {}
        "gg_2fort_compound" {}
        "gg_2simple_textures_v2" {}
        "gg_Accumulatorion" {}
        "gg_afekt_b1" {}
        "gg_aim_ag_texture_jungle-l" {}
        "gg_aim_shotty" {}
        "gg_an_mountain" {}
        "gg_an_shipyard08" {}
        "gg_autumn" {}
        "gg_avengers_shootout" {}
        "gg_aztec" {}
        "gg_beacn_redux" {}
        "gg_bloodlords_underground_v2" {}
        "gg_brrr_cabinwars" {}
        "gg_cardhouse" {}
        "gg_cargoyard_v2" {}
        "gg_carpark_battle" {}
        "gg_castle_wars" {}
        "gg_cemetery_ggn" {}
        "gg_diamond" {}
        "gg_digital_green" {}
        "gg_dm_hangumhigh-m" {}
        "gg_doomed_ramp_final" {}
        "gg_dust" {}
        "gg_eagleye_wintersday" {}
        "gg_fiercebattle_sunset" {}
        "gg_forestfun_ggn" {}
        "gg_fountainfight" {}
        "gg_fun_mines" {}
        "gg_funround" {}
        "gg_fy_icecabin_gzm-m" {}
        "gg_halo" {}
        "gg_halo_gold" {}
        "gg_heidi" {}
        "gg_jlm1" {}
        "gg_lego_arena_2" {}
        "gg_m3rcury" {}
        "gg_mad_grua" {}
        "gg_maximum_hdr" {}
        "gg_metal" {}
        "gg_natus_v2" {}
        "gg_neonarena_ii" {}
        "gg_nukkon_hdr" {}
        "gg_officeworld_v2" {}
        "gg_outside" {}
        "gg_punishment" {}
        "gg_ruins_dawn" {}
        "gg_sand_yard" {}
        "gg_shroomtemple_ggn" {}
        "gg_simpsons_assault" {}
        "gg_simpsons_x" {}
        "gg_snow_x" {}
        "gg_sork_ggn" {}
        "gg_stair_apex" {}
        "gg_supadeth_b3" {}
        "gg_tbr_water_basin" {}
        "gg_tides_restaurant" {}
        "gg_toondorf" {}
        "gg_ultradeth_b1" {}
        "gg_underpass" {}
        "gg_wasteland_fortress_v2" {}
        "gg_waterfalls_tex" {}
        "gg_wmd_cellular" {}
        "sl_tango_curve-d" {}
    }
}