Help [XF 1.5.1] Lỗi khi Export Smilies

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- Mình muốn Export Smilies, khi bấm vào nút đó thì văng lỗi như sau

- File log báo như vầy...

Server Error Log

Error Info
ErrorException: DOMDocument::createElement(): unterminated entity reference - library/XenForo/Model/Smilie.php:594
Generated By: PSI, 3 phút trước

Stack Trace
#0 [internal function]: XenForo_Application::handlePhpError(2, 'DOMDocument::cr...', '/home/lie9d122/...', 594, Array) #1 /home/lie9d122/public_html/diendan/library/XenForo/Model/Smilie.php(594): DOMDocument->createElement('smilie_text', '') #2 /home/lie9d122/public_html/diendan/library/XenForo/ControllerAdmin/Smilie.php(187): XenForo_Model_Smilie->getSmiliesXml(Array) #3 /home/lie9d122/public_html/diendan/library/XenForo/FrontController.php(351): XenForo_ControllerAdmin_Smilie->actionExport() #4 /home/lie9d122/public_html/diendan/library/XenForo/FrontController.php(134): XenForo_FrontController->dispatch(Object(XenForo_RouteMatch)) #5 /home/lie9d122/public_html/diendan/admin.php(13): XenForo_FrontController->run() #6 {main}

Request State
array(3) { ["url"] => string(58) "http://liendoiphutrach.vn/diendan/admin.php?smilies/export" ["_GET"] => array(1) { ["smilies/export"] => string(0) "" } ["_POST"] => array(2) { ["_xfToken"] => string(8) "********" ["smilieId"] => array(119) { [0] => string(3) "474" [1] => string(3) "475" [2] => string(3) "476" [3] => string(3) "477" [4] => string(3) "478" [5] => string(3) "479" [6] => string(3) "480" [7] => string(3) "481" [8] => string(3) "482" [9] => string(3) "483" [10] => string(3) "484" [11] => string(3) "485" [12] => string(3) "486" [13] => string(3) "487" [14] => string(3) "488" [15] => string(3) "489" [16] => string(3) "490" [17] => string(3) "491" [18] => string(3) "492" [19] => string(3) "493" [20] => string(3) "494" [21] => string(3) "495" [22] => string(3) "496" [23] => string(3) "497" [24] => string(3) "498" [25] => string(3) "499" [26] => string(3) "500" [27] => string(3) "501" [28] => string(3) "502" [29] => string(3) "503" [30] => string(3) "504" [31] => string(3) "505" [32] => string(3) "506" [33] => string(3) "507" [34] => string(3) "508" [35] => string(3) "509" [36] => string(3) "510" [37] => string(3) "511" [38] => string(3) "512" [39] => string(3) "513" [40] => string(3) "514" [41] => string(3) "515" [42] => string(3) "516" [43] => string(3) "517" [44] => string(3) "518" [45] => string(3) "519" [46] => string(3) "520" [47] => string(3) "521" [48] => string(3) "522" [49] => string(3) "523" [50] => string(3) "524" [51] => string(3) "525" [52] => string(3) "526" [53] => string(3) "527" [54] => string(3) "528" [55] => string(3) "529" [56] => string(3) "530" [57] => string(3) "531" [58] => string(3) "532" [59] => string(3) "533" [60] => string(3) "534" [61] => string(3) "535" [62] => string(3) "536" [63] => string(3) "537" [64] => string(3) "538" [65] => string(3) "539" [66] => string(3) "540" [67] => string(3) "541" [68] => string(3) "542" [69] => string(3) "543" [70] => string(3) "544" [71] => string(3) "545" [72] => string(3) "546" [73] => string(3) "547" [74] => string(3) "548" [75] => string(3) "549" [76] => string(3) "550" [77] => string(3) "551" [78] => string(3) "552" [79] => string(3) "553" [80] => string(3) "554" [81] => string(3) "555" [82] => string(3) "556" [83] => string(3) "557" [84] => string(3) "558" [85] => string(3) "559" [86] => string(3) "560" [87] => string(3) "561" [88] => string(3) "562" [89] => string(3) "563" [90] => string(3) "564" [91] => string(3) "565" [92] => string(3) "566" [93] => string(3) "567" [94] => string(3) "568" [95] => string(3) "569" [96] => string(3) "570" [97] => string(3) "571" [98] => string(3) "572" [99] => string(3) "573" [100] => string(3) "574" [101] => string(3) "575" [102] => string(3) "576" [103] => string(3) "577" [104] => string(3) "578" [105] => string(3) "579" [106] => string(3) "580" [107] => string(3) "581" [108] => string(3) "582" [109] => string(3) "583" [110] => string(3) "584" [111] => string(3) "585" [112] => string(3) "586" [113] => string(3) "587" [114] => string(3) "588" [115] => string(3) "589" [116] => string(3) "590" [117] => string(3) "591" [118] => string(3) "592" } } }