RoundCube Reply error

Hello Dears,
I have a proplem.. when I try to reply to any email from this URL: webmail.mydomain.com
And the message content like that:

I'm Fine
On 2020-03-27 22:52, Abdalluh Mostafa wrote:
> good
>
> On Fri, 27 Mar 2020 at 22:51, Abdalluh Mostafa
> abdalluh
>
>> how are u
>
> Thanks,
> Abdalluh Mostafa.

and click send the message not send and roundcube show me ( Sending message... )
but when i try remove this message content and type and other thing like ( I'm fine, how are you )
the message send successfully!!

Please note
when I try to reply from this URL: https://mydomain.com:2087/roundcube
I can reply with the message content:


I'm Fine
On 2020-03-27 22:52, Abdalluh Mostafa wrote:
> good
>
> On Fri, 27 Mar 2020 at 22:51, Abdalluh Mostafa
> abdalluh
>
>> how are u
>
> Thanks,
> Abdalluh Mostafa.

What's the problem can anyone help me?

Please post the contents of the log files under
/usr/local/cwpsrv/var/services/roundcube/logs/