Template:Wt/haw/molekumu

[[Wt/haw/Lua error in Module:Wt/haw/languages at line 362: The function getByCode expects a string as its first argument, but received a table..|Lua error in Module:Wt/haw/languages at line 362: The function getByCode expects a string as its first argument, but received a table..]] [[Wt/haw/|]]

ERROR: This page is using an unprefixed version of template {{Documentation}}

Create {{Wt/haw/Documentation}} instead and replace all occurences of {{Documentation}} in Wt/haw/ prefixed pages by that.
You may like to check 1 template in Category:Wt/haw/Templates using unprefixed template Documentation first to remove all occurences from those templates which will fix the pages containing those templates too.
[create] Template-info.svg Template documentation