The Kunena team has announce the arrival of Kunena 126.96.36.199 [K 188.8.131.52] which is now available for download as a native Joomla extension for J! 4.2.x. This version addresses most of the issues that were discovered in K 6.0 and issues discovered during the development stages of K 6.0.
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My Kunena is not installing in the second level, how to fix?