Help me solve this WordPress error

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it shows up at the top of my website

the \*\*\*\* is my domain

**Warning**: Undefined array key “value” in **/home/u143437100/domains/\*\*\*\*\*\*\*.com/public\_html/wp-content/plugins/elementor/includes/controls/base-multiple.php** on line **87**

**Warning**: Undefined array key “value” in **/home/u143437100/domains/\*\*\*\*\*\*\*\*.com/public\_html/wp-content/plugins/elementor/includes/controls/base-multiple.php** on line **87**

**Warning**: Undefined array key “value” in **/home/u143437100/domains/\*\*\*\*\*\*\*.com/public\_html/wp-content/plugins/elementor/includes/controls/base-multiple.php** on line **87**

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