Permaprops not working on 1 specific map and broken permissions

[Hexon-Boi]

Hi, on rp_jania_exile_v2 props disappear after permaproping them and cleaning the map, they also don't come back after respawning from the settings. I know that when we had this problem on original rp_jania_exile u have managed to fix it, but when v2 came out, we have this problem again on reworked version. When i try to respawn them or clean up the map i get this error in server console:

[permaprops] addons/permaprops/lua/permaprops/sv_main.lua:130: bad argument #2 to 'SetKeyValue' (string expected, got userdata)
  1. SetKeyValue - [C]:-1
   2. SpawnProp - addons/permaprops/lua/permaprops/sv_main.lua:130
    3. callback - addons/permaprops/lua/permaprops/sv_main.lua:212
     4. SQLQuery - addons/permaprops/lua/permaprops/sv_sql.lua:52
      5. SpawnAllProps - addons/permaprops/lua/permaprops/sv_main.lua:207
       6. unknown - addons/permaprops/lua/permaprops/sv_main.lua:370
Timer Failed! [Simple][@addons/permaprops/lua/permaprops/sv_main.lua (line 369)] 

Also i have a problem with the permissions, i have them set up so operator in the ULX can do stuff with the tool like permaproping and deleting permaprops, but they can't do that, i got chat msg that they don't have permissions

Awaiting your response :)

[Hexon-Boi]

Now we have this problem on all maps and we can't build anything on the server

[permaprops] addons/permaprops/lua/permaprops/sv_main.lua:130: bad argument #2 to 'SetKeyValue' (string expected, got userdata)
  1. SetKeyValue - [C]:-1
   2. SpawnProp - addons/permaprops/lua/permaprops/sv_main.lua:130
    3. callback - addons/permaprops/lua/permaprops/sv_main.lua:212
     4. SQLQuery - addons/permaprops/lua/permaprops/sv_sql.lua:52
      5. SpawnAllProps - addons/permaprops/lua/permaprops/sv_main.lua:207
       6. fn - addons/permaprops/lua/permaprops/sv_main.lua:415
        7. unknown - lua/ulib/shared/hook.lua:109
         8. CleanUpMap - [C]:-1
          9. unknown - gamemodes/starwarsrp/gamemode/modules/fadmin/fadmin/cleanup/sv_init.lua:26
           10. unknown - lua/includes/modules/concommand.lua:54

[Hexon-Boi]

When checking Permaprops overview i get this clientside error spam too

[permaprops] addons/permaprops/lua/permaprops/cl_main.lua:350: attempt to concatenate field 'steamName' (a nil value)
  1. unknown - addons/permaprops/lua/permaprops/cl_main.lua:350 (x3320)

[Hexon-Boi]

I found out that removing Invalid permaprops from that map solved the problem with disappearing props, but i think only temporarily. New invalid props will be added over time because of this bug and this problem will repeat