Error on Contact Form Page

[zerecero]

On the page Contacts, the is this message:

Notice: Use of undefined constant ID – assumed ‘ID’ in E:\wamp64\www\wordpress\wp-content\plugins\qt-contactform\qt-contactform.php on line 145

Call Stack
# Time Memory Function Location
1 0.0007 238784 {main}( ) …\index.php:0
2 0.0009 241888 require( ‘E:\wamp64\www\wordpress\wp-blog-header.php’ ) …\index.php:17
3 0.6883 46561088 require_once( ‘E:\wamp64\www\wordpress\wp-includes\template-loader.php’ ) …\wp-blog-header.php:19
4 0.7023 46860624 include( ‘E:\wamp64\www\wordpress\wp-content\themes\lifecoach\page-contacts.php’ ) …\template-loader.php:74
5 0.8951 48018976 do_shortcode( ) …\page-contacts.php:28
6 0.8952 48022136 preg_replace_callback ( ) …\shortcodes.php:197
7 0.8952 48023792 do_shortcode_tag( ) …\shortcodes.php:197
8 0.8953 48023968 call_user_func:{E:\wamp64\www\wordpress\wp-includes\shortcodes.php:319} ( ) …\shortcodes.php:319
9 0.8953 48024784 qt_contactform( ) …\shortcodes.php:319

And below is te contact form, how to i make that desapear ?

Thanks

[themes2go]

Hello,
probably something got corrupted during the plugin installation, it may happen…
Please do like this:

1. Go in Plugins
2. Disable the plugin QT Contact Form
3. > UNINSTALL IT (DELETE)
4. A notice will pop out at the top of the page asking to install it again, follow the instruction to install it, or simply go in the Life Coach theme dashboard, Plugins and install it from there.
5. The issue should be fixed

[zerecero]

I did it , and now it works ok, but when i try to send an email this appears:

Notice: Array to string conversion in /home3/zerezofi/public_html/www.kabalashomrimlaboker.com/wp-content/plugins/qt-contactform/qt-contactform.php on line 230

[themes2go]

Just checked the code, there are no issues appearing here, therefore I’d go for a troubleshooting based on the settings.
Please check your contacts page, be sure to have both emal fields compiled, and in particular be sire that the “From Address” is in the same domain of your site

https://d.pr/free/i/VlVJFk

so if your site is in coolwebsite.com the email has to be like info@coolwebsite.com

ALSO i see you are in local (wamp64)

the email 99% of times can’t work on wamp, so local environment can be the cause.