DB Error: Illegal mix of collations (latin1_swedish_ci,IMPLICIT) and (utf8mb3_unicode_ci,COERCIBLE) for operation '='

Stack Trace:

File: /home/indiein1/public_html/isciencepubs/journal/classes/search/ArticleSearchDAO.inc.php line 126
Function: DAO->retrieveCached("SELECT o.article_id, COUNT(*) AS count FROM articles a, ...", Array(3), 3600)

File: /home/indiein1/public_html/isciencepubs/journal/classes/search/ArticleSearch.inc.php line 200
Function: ArticleSearchDAO->getPhraseResults(Object(Journal), Array(1), Null, Null, 16, 500, 1)

File: /home/indiein1/public_html/isciencepubs/journal/classes/search/ArticleSearch.inc.php line 138
Function: ArticleSearch->_getMergedPhraseResults(Object(Journal), Array(1), 16, Null, Null, 500, 1)

File: /home/indiein1/public_html/isciencepubs/journal/classes/search/ArticleSearch.inc.php line 186
Function: ArticleSearch->_getMergedKeywordResults(Object(Journal), Array(4), Null, Null, Null, 500, 1)

File: /home/indiein1/public_html/isciencepubs/journal/classes/search/ArticleSearch.inc.php line 138
Function: ArticleSearch->_getMergedPhraseResults(Object(Journal), Array(4), Null, Null, Null, 500, 1)

File: /home/indiein1/public_html/isciencepubs/journal/classes/search/ArticleSearch.inc.php line 122
Function: ArticleSearch->_getMergedKeywordResults(Object(Journal), Array(3), Null, Null, Null, 500, 1)

File: /home/indiein1/public_html/isciencepubs/journal/classes/search/ArticleSearch.inc.php line 434
Function: ArticleSearch->_getMergedArray(Object(Journal), Array(1), Null, Null)

File: /home/indiein1/public_html/isciencepubs/journal/pages/search/SearchHandler.inc.php line 146
Function: ArticleSearch->retrieveResults(Object(Journal), Array(1), "", Null, Null, Object(DBResultRange))

File: /home/indiein1/public_html/isciencepubs/journal/pages/search/SearchHandler.inc.php line 35
Function: SearchHandler->search(Array(0), Object(Request))

File: (unknown) line (unknown)
Function: SearchHandler->index(Array(0), Object(Request))

File: /home/indiein1/public_html/isciencepubs/journal/lib/pkp/classes/core/PKPRouter.inc.php line 362
Function: call_user_func(Array(2), Array(0), Object(Request))

File: /home/indiein1/public_html/isciencepubs/journal/lib/pkp/classes/core/PKPPageRouter.inc.php line 220
Function: PKPRouter->_authorizeInitializeAndCallRequest(Array(2), Object(Request), Array(0), False)

File: /home/indiein1/public_html/isciencepubs/journal/lib/pkp/classes/core/Dispatcher.inc.php line 134
Function: PKPPageRouter->route(Object(Request))

File: /home/indiein1/public_html/isciencepubs/journal/lib/pkp/classes/core/PKPApplication.inc.php line 178
Function: Dispatcher->dispatch(Object(Request))

File: /home/indiein1/public_html/isciencepubs/journal/index.php line 64
Function: PKPApplication->execute()