The Kunena team has announce the arrival of Kunena 6.3.0 [K 6.3.0] in stable which is now available for download as a native Joomla extension for J! 4.4.x/5.0.x/5.1.x. This version addresses most of the issues that were discovered in K 6.2 and issues discovered during the last development stages of K 6.3
As mentioned elsewhere on the forum it would have been a great help in translating, if the 'master' file (kunena.english.php) were cleaned up regarding out-dated version comments etc AND if the file had clearly been partitioned in a back-end and front-end part.
Most Danes fiddling with this stuff would have no probs using the English back-end and if they had they would be able to ask the forum more specifically based on the English user-interface