About fancybox pop-up box data submission

now there is a requirement that a pop-up box pops up after clicking the button, and there is a text box in the pop-up box. Enter the data and submit it. I now use fancybox to make a pop-up box, but later there is a problem when submitting the data. After clicking the submit button, I found that the data could not be submitted. How to solve this problem?
$("- sharpphone_button") .click (function () {

    $.fancybox.open("<div><form id="fanbox_phone"><input type="text" id="phone_num"/><input type="submit" id="phone_num_submit"/></form></div>");
});
$("-sharpfanbox_phone").ajaxForm({
    url: "/users/update_phone",
    type: "POST",
    beforeSubmit: function (a, f, o) {
        console.log(123);
        f.find("input[type=submit]").prop("disabled", true).addClass("disabled");
    },
    success: ajaxCallBack
});

js"123" 
Mar.31,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b36431-2c012.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b36431-2c012.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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