I couldn't find any other similar posts, with the following problem.
I'm not sure it is related to this one, but since it has a similar error message, I'll post here.
The user was trying to edit the Metadata in a submission and this error showed up.
DB Error: Duplicate entry 'ge' for key 2
When enabling the stack trace this appeared.
The special characters not being printed here and in our forum I assume it's a charset output problem, but I'm not really sure. I asked the user and he confirmed that he only copied and pasted what appeared. On the browser, the characters seem to be correct, but I have no access.
File: /usr/local/apache2/htdocs/seer/classes/search/ArticleSearchDAO.inc.php line 45
Function: articlesearchdao->update("INSERT INTO article_search_keyword_list (keyword_text) VALUES (?...", "geï¿½grafo")
File: /usr/local/apache2/htdocs/seer/classes/search/ArticleSearchDAO.inc.php line 201
File: /usr/local/apache2/htdocs/seer/classes/search/ArticleSearchIndex.inc.php line 37
Function: articlesearchdao->insertobjectkeyword("18", "geï¿½grafo", 4)
File: /usr/local/apache2/htdocs/seer/classes/search/ArticleSearchIndex.inc.php line 53
Function: articlesearchindex::indexobjectkeywords("18", Array(20), 4)
File: /usr/local/apache2/htdocs/seer/classes/search/ArticleSearchIndex.inc.php line 167
Function: articlesearchindex::updatetextindex("1", 1, Array(20))
File: /usr/local/apache2/htdocs/seer/classes/submission/form/MetadataForm.inc.php line 252
File: /usr/local/apache2/htdocs/seer/classes/submission/common/Action.inc.php line 139
File: /usr/local/apache2/htdocs/seer/pages/sectionEditor/SubmissionEditHandler.inc.php line 698
File: /usr/local/apache2/htdocs/seer/pages/sectionEditor/SectionEditorHandler.inc.php line 314
File: (unknown) line (unknown)
File: /usr/local/apache2/htdocs/seer/index.php line 46
Function: call_user_func(Array(2), Array(0))
File: /usr/local/apache2/htdocs/seer/index.php line 57