Languagetool Disable under OpenOffice 4.1.11

I have upgrade to OpenOffice 4.1.11 and Languagetool (5.4 or 5.5) has been disable ("appear in the menu bar but in “gray” color). Reinstalling OpenOffice don’t solve the problem. The extension is installed but is not enable by the program. I have tried to disable and enable in the Writing Aid menu, but nothing happens.
I have installed Java 8.301, NetFramework 8 and Windows 7 x64 Professional.
Any solution? I have returned to OpenOffice 4.1.10.
Thanks.

Another issue. When I try to load the languagetool-test.odt file OpenOffice 4.1.11 close (¿crash? without notice). When the program restart, recover that file and the corrector make its work apparently. It is possible to access to the Languagetool menu through the mouses´s secondary button, but it does not activate its menu and does not make any corrections.

With the new version 5.5.1 Languagetool has “come back to life” in my OpenOffice 4.1.11 under Windows 7 x64 Professional. Excellent work and thank you very much.