Lua error in package.lua at line 80: module 'Module:string/char' not found.

Backtrace:

(tail call): ?
[C]: in function "error"
package.lua:80: in function "load"
package.lua:99: in function "require"
Module:languages/data:3: in function "init"
package.lua:103: in function "require"
Module:languages/datax:2: in function "init"
package.lua:103: ?
(tail call): ?
mw.lua:496: in function "executeModule"
mw.lua:768: in function "loadData"
Module:languages:493: in function "getRawLanguageData"
Module:languages:524: in function "getByCode"
Module:labels/templates:94: in function "chunk"
mw.lua:527: ?
(tail call): ?
[C]: in function "xpcall"
MWServer.lua:99: in function "handleCall"
MWServer.lua:313: in function "dispatch"
MWServer.lua:70: ?
(tail call): ?
mw.lua:196: in function "old_pairs"
...ribunto/includes/engines/LuaCommon/lualib/mwInit.lua:17: in function "pairs"
Module:parameters:109: in function "process"
Module:form_of/templates:342: in function "chunk"
mw.lua:527: ?
(tail call): ?
[C]: in function "xpcall"
MWServer.lua:99: in function "handleCall"
MWServer.lua:313: in function "dispatch"
MWServer.lua:52: in function "execute"
mw_main.lua:7: in main chunk
[C]: ?

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Siwa