ROMs Don't Open

[yeep-bepis]

lvl2: EmulationStation - v2.8.0rp-dev, built Nov 19 2018 - 06:20:30
lvl2: Parsing XML file "C:/Program Files (x86)/EmulationStation/resources/mamenames.xml"...
lvl2: Parsing XML file "C:/Program Files (x86)/EmulationStation/resources/mamebioses.xml"...
lvl2: Parsing XML file "C:/Program Files (x86)/EmulationStation/resources/mamedevices.xml"...
lvl2: Creating surface...
lvl2: Created window successfully.
lvl2: Added known joystick XInput Controller #1 (instance ID: 0, device index: 0)
lvl2: Checking available OpenGL extensions...
lvl2: ARB_texture_non_power_of_two: ok
lvl2: Loading system config file C:/Users/Liam PC/.emulationstation/es_systems.cfg...
lvl1: System "gc" has no games! Ignoring it.
lvl2: Parsing XML file "C:/Users/Liam PC/.emulationstation/gamelists/gbc/gamelist.xml"...
lvl1: Warning from theme "C:/Users/Liam PC/.emulationstation/themes/recalbox-multi/gbc/theme.xml"
could not find file "./data/controller.svg" (which resolved to "C:/Users/Liam PC/.emulationstation/themes/recalbox-multi/gbc/data/controller.svg")
lvl1: Warning from theme "C:/Users/Liam PC/.emulationstation/themes/recalbox-multi/gba/theme.xml"
could not find file "./data/controller.svg" (which resolved to "C:/Users/Liam PC/.emulationstation/themes/recalbox-multi/gba/data/controller.svg")
lvl1: System "ps2" has no games! Ignoring it.
lvl1: Unknown platform for system "mame" (platform "mame" from list "mame")
lvl1: System "mame" has no games! Ignoring it.
lvl1: System "fba" has no games! Ignoring it.
lvl1: System "amiga" has no games! Ignoring it.
lvl2: Parsing XML file "C:/Users/Liam PC/.emulationstation/gamelists/atari2600/gamelist.xml"...
lvl2: Parsing XML file "C:/Users/Liam PC/.emulationstation/gamelists/atari7800/gamelist.xml"...
lvl1: System "c64" has no games! Ignoring it.
lvl1: System "mastersystem" has no games! Ignoring it.
lvl1: System "msx" has no games! Ignoring it.
lvl1: System "neogeo" has no games! Ignoring it.
lvl1: Warning from theme "C:/Users/Liam PC/.emulationstation/themes/recalbox-multi/ngp/theme.xml"
could not find file "./data/controller.svg" (which resolved to "C:/Users/Liam PC/.emulationstation/themes/recalbox-multi/ngp/data/controller.svg")
lvl1: System "ngp" has no games! Ignoring it.
lvl1: System "scummvm" has no games! Ignoring it.
lvl1: Warning from theme "C:/Users/Liam PC/.emulationstation/themes/recalbox-multi/auto-favorites/theme.xml"
could not find file "./data/controller.svg" (which resolved to "C:/Users/Liam PC/.emulationstation/themes/recalbox-multi/auto-favorites/data/controller.svg")
lvl2: req sound [basic.launch]
lvl2: (missing)
lvl2: Attempting to launch game...
lvl2: getting volume as 34 ( from float 0.34)
lvl2: C:\Users\Liam PC.emulationstation\systems\retroarch\retroarch.exe -L C:\Users\Liam PC.emulationstation\systems\retroarch\cores\genesis_plus_gx_libretro.dll "C:\Users\Liam PC.emulationstation\roms\megadrive\Sonic The Hedgehog (USA, Europe).md"
lvl1: ...launch terminated with nonzero exit code 1!
lvl2: Creating surface...
lvl2: Created window successfully.
lvl2: Added known joystick XInput Controller #1 (instance ID: 1, device index: 0)
lvl2: Added known joystick XInput Controller #1 (instance ID: 1, device index: 0)
lvl2: req sound [basic.launch]
lvl2: (missing)
lvl2: Attempting to launch game...
lvl2: C:\Users\Liam PC.emulationstation\systems\retroarch\retroarch.exe -L C:\Users\Liam PC.emulationstation\systems\retroarch\cores\genesis_plus_gx_libretro.dll "C:\Users\Liam PC.emulationstation\roms\megadrive\Sonic The Hedgehog (USA, Europe).md"
lvl1: ...launch terminated with nonzero exit code 1!
lvl2: Creating surface...
lvl2: Created window successfully.
lvl2: Added known joystick XInput Controller #1 (instance ID: 2, device index: 0)
lvl2: Added known joystick XInput Controller #1 (instance ID: 2, device index: 0)
lvl2: Added/Updated 1 entities in '/etc/emulationstation/gamelists/megadrive/gamelist.xml'
lvl2: EmulationStation cleanly shutting down.

[yeep-bepis]

I've tried to start up a bunch of different roms and emulators. Still hasn't worked. Can anyone help?