Exception encountered, of type &quot;Error&quot;<br />
[aHIsOovyjc1WyK8cRaru3AAAANE] /wiki/index.php?title=File:Acer_pseudoplatanus_sl1.jpg   Error from line 663 of /home/clients/9f22fb278c23e5df9703e8e1f952bf91/web/wiki/includes/exception/MWExceptionHandler.php: Class 'FormatJson' not found<br />
Backtrace:<br />
#0 /home/clients/9f22fb278c23e5df9703e8e1f952bf91/web/wiki/includes/exception/MWExceptionHandler.php(242): MWExceptionHandler::logError(ErrorException, string)<br />
#1 /home/clients/9f22fb278c23e5df9703e8e1f952bf91/web/wiki/includes/AutoLoader.php(81): MWExceptionHandler::handleError(integer, string, string, integer, array)<br />
#2 /home/clients/9f22fb278c23e5df9703e8e1f952bf91/web/wiki/includes/AutoLoader.php(81): require()<br />
#3 [internal function]: AutoLoader::autoload(string)<br />
#4 /home/clients/9f22fb278c23e5df9703e8e1f952bf91/web/wiki/includes/filerepo/ForeignAPIRepo.php(206): spl_autoload_call(string)<br />
#5 /home/clients/9f22fb278c23e5df9703e8e1f952bf91/web/wiki/includes/filerepo/file/ForeignAPIFile.php(63): ForeignAPIRepo-&gt;fetchImageQuery(array)<br />
#6 /home/clients/9f22fb278c23e5df9703e8e1f952bf91/web/wiki/includes/filerepo/FileRepo.php(399): ForeignAPIFile::newFromTitle(Title, ForeignAPIRepo)<br />
#7 /home/clients/9f22fb278c23e5df9703e8e1f952bf91/web/wiki/includes/filerepo/ForeignAPIRepo.php(119): FileRepo-&gt;newFile(Title, boolean)<br />
#8 /home/clients/9f22fb278c23e5df9703e8e1f952bf91/web/wiki/includes/filerepo/FileRepo.php(431): ForeignAPIRepo-&gt;newFile(Title)<br />
#9 /home/clients/9f22fb278c23e5df9703e8e1f952bf91/web/wiki/includes/filerepo/RepoGroup.php(158): FileRepo-&gt;findFile(Title, array)<br />
#10 /home/clients/9f22fb278c23e5df9703e8e1f952bf91/web/wiki/includes/GlobalFunctions.php(3186): RepoGroup-&gt;findFile(Title, array)<br />
#11 /home/clients/9f22fb278c23e5df9703e8e1f952bf91/web/wiki/includes/page/WikiFilePage.php(60): wfFindFile(Title)<br />
#12 /home/clients/9f22fb278c23e5df9703e8e1f952bf91/web/wiki/includes/page/WikiFilePage.php(126): WikiFilePage-&gt;loadFile()<br />
#13 /home/clients/9f22fb278c23e5df9703e8e1f952bf91/web/wiki/includes/MediaWiki.php(414): WikiFilePage-&gt;getFile()<br />
#14 /home/clients/9f22fb278c23e5df9703e8e1f952bf91/web/wiki/includes/MediaWiki.php(286): MediaWiki-&gt;initializeArticle()<br />
#15 /home/clients/9f22fb278c23e5df9703e8e1f952bf91/web/wiki/includes/MediaWiki.php(745): MediaWiki-&gt;performRequest()<br />
#16 /home/clients/9f22fb278c23e5df9703e8e1f952bf91/web/wiki/includes/MediaWiki.php(519): MediaWiki-&gt;main()<br />
#17 /home/clients/9f22fb278c23e5df9703e8e1f952bf91/web/wiki/index.php(43): MediaWiki-&gt;run()<br />
#18 {main}<br />