Mt-tabbar switching error: Cannot read property 'match' of null

A Uncaught TypeError: Cannot read property "match" of null error occurred when using Tabbar in Mint-UI.

UI figure:

the following error occurred when clicking tabbar to switch tab:

VM3871:1 Uncaught TypeError: Cannot read property "match" of null
    at U (<anonymous>:1:238)
    at cn (<anonymous>:1:297)
U @ VM3871:1
cn @ VM3871:1
VM3871:1 Uncaught TypeError: Cannot read property "match" of null
    at U (<anonymous>:1:238)
    at an (<anonymous>:1:412)
U @ VM3871:1
an @ VM3871:1
VM3871:1 Uncaught TypeError: Cannot read property "match" of null
    at U (<anonymous>:1:238)
    at en (<anonymous>:1:527)
U @ VM3871:1
en @ VM3871:1
VM3871:1 Uncaught TypeError: Cannot read property "match" of null
    at U (<anonymous>:1:238)
    at cn (<anonymous>:1:297)
U @ VM3871:1
cn @ VM3871:1
VM3871:1 Uncaught TypeError: Cannot read property "match" of null
    at U (<anonymous>:1:238)
    at an (<anonymous>:1:412)
U @ VM3871:1
an @ VM3871:1
VM3871:1 Uncaught TypeError: Cannot read property "match" of null
    at U (<anonymous>:1:238)
    at en (<anonymous>:1:527)

the calling code is as follows:

<template>
    <div>
        <router-view></router-view>
        <mt-tabbar fixed v-model="selected">
            <mt-tab-item id="tab1" @click.native="goTo("/main/home")">
                <img slot="icon" src="../assets/logo.png">
                
            </mt-tab-item>
            <mt-tab-item id="tab2" @click.native="goTo("/main/info")">
                <img slot="icon" src="../assets/logo.png">
                
            </mt-tab-item>
            <mt-tab-item id="tab3" @click.native="goTo("/main/learning")">
                <img slot="icon" src="../assets/logo.png">
                
            </mt-tab-item>
            <mt-tab-item id="tab4" @click.native="goTo("/main/industry")">
                <img slot="icon" src="../assets/logo.png">
                
            </mt-tab-item>
        </mt-tabbar>
    </div>
</template>

<script>
    export default {
        name: "Main",
        methods: {
            goTo(path) {
                this.$router.replace(path);
            }
        },
        data() {
            return {
                selected: "tab4",
            }
        }
    }
</script>

<style scoped>

</style>
Nov.06,2021
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-64f5-1bea0ec-46a0c.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1bea0ec-46a0c.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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