it work with contactus page but not work in commnets !!

[vahidalvandi]

Describe the bug
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To Reproduce
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1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior
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Screenshots
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Environment:

• OS and server: [e.g. Ubuntu 16.04 / Nginx] (If you are using a VM on Windows DON'T "say" Windows)
• PHP version [7.1.x]
• Laravel version [e.g. 5.5]
• Package version [e.g. 3.4.1]

Additional context
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