Form submission throwing an error "An error occurred while processing this request." with PHP version 7.4.30

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The specific error we're encountering occurs when a form submission triggers an ajax error response:
{
"error": {
"message": "An error occurred while processing this request."
},
"errors": [
"An error occurred while processing this request."
]
}

1 Attachment

Type: Ticket
Status: New
IowaCremationC5
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concrete5 Environment Information

# concrete5 Version
Core Version - 8.5.7
Version Installed - 8.5.7
Database Version - 20210623000000

# Database Information
Version: 5.7.42-log
SQL Mode: NO_ENGINE_SUBSTITUTION

# concrete5 Packages
Accordion Content (1.2.4), Advanced Secure Image Captcha (0.0.1), Block Designer (2.6.3), Formify (3.2.3), HW Recaptcha V3 (0.9.6)

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

# Server Software
Apache

# Server API
apache2handler

# PHP Version
7.4.30

# PHP Extensions
apache2handler, bcmath, bz2, calendar, Core, ctype, curl, date, dom, exif, FFI, fileinfo, filter, ftp, gd, gettext, gmp, hash, iconv, igbinary, intl, json, ldap, libxml, mbstring, mcrypt, memcached, msgpack, mysqli, mysqlnd, openssl, pcre, PDO, pdo_mysql, Phar, posix, readline, Reflection, session, shmop, SimpleXML, soap, sockets, sodium, SPL, standard, sysvmsg, sysvsem, sysvshm, tidy, tokenizer, xml, xmlreader, xmlrpc, xmlwriter, xsl, Zend OPcache, zip, zlib

# PHP Settings
max_execution_time - 120
log_errors_max_len - 1024
max_file_uploads - 20
max_input_nesting_level - 64
max_input_time - 60
max_input_vars - 1000
memory_limit - 256M
post_max_size - 50M
upload_max_filesize - 50M
ldap.max_links - Unlimited
mbstring.regex_retry_limit - 1000000
mbstring.regex_stack_limit - 100000
memcached.sess_lock_max_wait - not set
memcached.sess_lock_wait_max - 150
memcached.sess_server_failure_limit - 0
mysqli.max_links - Unlimited
mysqli.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
unserialize_max_depth - 4096
opcache.max_accelerated_files - 10000
opcache.max_file_size - 0
opcache.max_wasted_percentage - 5

Browser User-Agent String

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36

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