404 after submission from modal stack form

Permalink Browser Info Environment
Hi Andy,
How are you?
I redesigned my website but none of the forms are working, I get 404 after submission and messages are not submitted either.
I have built several stacks with the express form block on it, so I can open the forms in a pop up window with the modal block. You can check it here:
I tested the email function and it works, and I also tested stand alone forms on a test page and they work too. It is when inside the modal that they don't work.
Could you take a look?
Thank you!

Type: Ticket
Status: New
View Replies:

concrete5 Environment Information

# concrete5 Version
Core Version - 8.5.2
Version Installed - 8.5.2
Database Version - 20190925072210

# Database Information
Version: 10.3.22-MariaDB
SQL Mode:

# concrete5 Packages
Background Image and Overlay (0.9.9), Fundamental (4.0.7), HTML+PHP Code Block (1.0.2), Portfolio Grid (1.1.2), Rescan All Files (0.1.5), Simple Gallery (1.0.9), Whale OWL Carousel (2.5.8)

# concrete5 Overrides
blocks/express_form/templates/beautebook/view.js, blocks/express_form/templates/beautebook/view.php, blocks/express_form/templates/beautebook/view.css, blocks/express_form/templates/beautebook, blocks/express_form/templates, blocks/express_form, blocks/autonav/templates/services/view.php, blocks/autonav/templates/services/view.css, blocks/autonav/templates/services, blocks/autonav/templates, blocks/autonav, blocks/fundamental_pricing_table/templates/beautebook/view.php, blocks/fundamental_pricing_table/templates/beautebook, blocks/fundamental_pricing_table/templates, blocks/fundamental_pricing_table, blocks/portfolio_grid/templates/portfolio/view.js, blocks/portfolio_grid/templates/portfolio/view.php, blocks/portfolio_grid/templates/portfolio/view.css, blocks/portfolio_grid/templates/portfolio, blocks/portfolio_grid/templates/portfolio-3-col/view.js, blocks/portfolio_grid/templates/portfolio-3-col/view.php, blocks/portfolio_grid/templates/portfolio-3-col/view.css, blocks/portfolio_grid/templates/portfolio-3-col, blocks/portfolio_grid/templates/portfolio-6-col/view.js, blocks/portfolio_grid/templates/portfolio-6-col/view.php, blocks/portfolio_grid/templates/portfolio-6-col/view.css, blocks/portfolio_grid/templates/portfolio-6-col, blocks/portfolio_grid/templates, blocks/portfolio_grid

# concrete5 Cache Settings
Block Cache - Off
Overrides Cache - Off
Full Page Caching - Off
Full Page Cache Lifetime - Every 6 hours (default setting).

# Server Software

# Server API

# PHP Version

# PHP Extensions
bcmath, bz2, calendar, Core, ctype, curl, date, dba, dom, enchant, exif, fileinfo, filter, ftp, gd, gettext, gmp, hash, iconv, imap, intl, ionCube Loader, json, ldap, libxml, litespeed, mbstring, mysqli, mysqlnd, odbc, openssl, pcntl, pcre, PDO, pdo_mysql, PDO_ODBC, pdo_sqlite, Phar, posix, pspell, readline, Reflection, session, shmop, SimpleXML, soap, sockets, SourceGuardian, SPL, sqlite3, standard, sysvmsg, sysvsem, sysvshm, tidy, timezonedb, tokenizer, wddx, xml, xmlreader, xmlrpc, xmlwriter, xsl, zip, zlib

# PHP Settings
max_execution_time - 180
log_errors_max_len - 1024
max_file_uploads - 20
max_input_nesting_level - 64
max_input_time - 150
max_input_vars - 6000
memory_limit - 512M
post_max_size - 64M
upload_max_filesize - 80M
ic24.api.max_timeout - 7
ldap.max_links - Unlimited
mysqli.max_links - Unlimited
mysqli.max_persistent - Unlimited
odbc.max_links - Unlimited
odbc.max_persistent - Unlimited
pcre.backtrack_limit - 1000000
pcre.recursion_limit - 100000
session.cache_limiter - <i>no value</i>
session.gc_maxlifetime - 7200
soap.wsdl_cache_limit - 5

Browser User-Agent String

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.116 Safari/537.36

Hide Post Content

This will replace the post content with the message: "Content has been removed by an Administrator"

Hide Content

Request Refund

You may not request a refund that is not currently owned by you.