Contact Form stopped working and stop the page rendering but no change was done

[Coume]

Hello,

I had a contact form on the following page: http://ludoviccoumetou.com/contact-me

A friend informed me that my page was not working and in double checking, he is correct.
The form seems to be even break the rest of the rendering of the page.
The problem is that nothing has been modified in my code nor in the way, I call the form: {cms_module module='FormBuilder' form='contact'}
I even checked the admin log in case my site could have been hacked...

I cannot understand where the problem is coming nor can I see where I could go in order see an error log, etc?

Anyone has an idea?

Thanks in advance.
Ludo

[Dr.CSS]

You may want to check the page in edit mode or the template, and make sure you have the tag for the contact correct...

Result: 0 errors / 7 warnings

line 17 column 78 - Warning: element not empty or not closed
line 31 column 1 - Warning: missing
line 45 column 63 - Warning: unescaped & or unknown entity "&tag"
line 45 column 82 - Warning: element not empty or not closed
line 49 column 13 - Warning: missing
line 36 column 2 - Warning: missing
line 15 column 1 - Warning: missing
Info: Doctype given is "-//W3C//DTD XHTML 1.0 Transitional//EN"
Info: Document content looks like XHTML 1.0 Transitional

[Coume]

You may want to check the page in edit mode or the template, and make sure you have the tag for the contact correct...

Result: 0 errors / 7 warnings

line 17 column 78 - Warning: element not empty or not closed
line 31 column 1 - Warning: missing
line 45 column 63 - Warning: unescaped & or unknown entity "&tag"
line 45 column 82 - Warning: element not empty or not closed
line 49 column 13 - Warning: missing
line 36 column 2 - Warning: missing
line 15 column 1 - Warning: missing
Info: Doctype given is "-//W3C//DTD XHTML 1.0 Transitional//EN"
Info: Document content looks like XHTML 1.0 Transitional

Erm. I am likely to ask a dumb question but what is the Edit mode? How do you use it?

Thanks
Ludo

[Dr.CSS]

"what is the Edit mode"
When you go to Content » Pages » then click the name of the page you get » Edit Page: Home...

How did you insert the tag, where did you put it and how?...

Which ver. CMSMS?...

[Coume]

"what is the Edit mode"
When you go to Content » Pages » then click the name of the page you get » Edit Page: Home...

How did you insert the tag, where did you put it and how?...

I always have the WYSIWYG editor off as I'd rather work straight away with the code.

Here is the only content in my contact-me page:

{cms_module module='FormBuilder' form='contact'}

As I mentioned in my first message, the form was working fine and then stopped working but I haven't edited this page...

Which ver. CMSMS?...

I currently run 1.2.5