Colegio intecs plataforma moodle

Tengo un erro de sintaxis en mi plataforma necesito soporte en ella para solucionarlo ya que no encuentro forma de hacerlo

uncaught exception: join(): Passing glue string after array is deprecated. Swap the parameters (errno: 8192) in /home/colegiointec/public_html/aulavirtual/filter/wiris/integration/lib/php/Boot.class.php at line #834join(): Passing glue string after array is deprecated. Swap the parameters

in file: /home/colegiointec/public_html/aulavirtual/filter/wiris/integration/lib/php/Boot.class.php line 834
#0 [internal function]: _hx_error_handler(8192, 'join(): Passing..
.', '/Home/colegioin...', 834, Array)
#1 /home/colegiointec/public_html/aulavirtual/filter/wiris/integration/lib/php/Boot.class.php(834): join(Array, '.')
#2 /home/colegiointec/public_html/aulavirtual/filter/wiris/integration/lib/php/Boot.class.php(853): _hx_build_paths('/home/colegioin...', Array, Array, NULL)
#3 /home/colegiointec/public_html/aulavirtual/filter/wiris/integration/lib/com/wiris/system/CallWrapper.class.php(44): require_once('/home/colegioin...')
#4 /home/colegiointec/public_html/aulavirtual/filter/wiris/classes/pluginwrapper.php(80): com_wiris_system_CallWrapper->init('/home/colegioin...')
#5 /home/colegiointec/public_html/aulavirtual/filter/wiris/classes/pluginwrapper.php(54): filter_wiris_pluginwrapper->init()
#6 /home/colegiointec/public_html/aulavirtual/filter/wiris/settings.php(35): filter_wiris_pluginwrapper->__construct()
#7 /home/colegiointec/public_html/aulavirtual/lib/classes/plugininfo/filter.php(88): include('/home/colegioin...')
#8 /home/colegiointec/public_html/aulavirtual/admin/settings/plugins.php(223): core\plugininfo\filter->load_settings(Object(admin_root), 'filtersettings', true)
#9 /home/colegiointec/public_html/aulavirtual/lib/adminlib.php(8385): require('/home/colegioin...')
#10 /home/colegiointec/public_html/aulavirtual/admin/search.php(26): admin_get_root()
#11 {main}