Hello. Try to re-upload the site to the hosting (completely, not just an update).
Try using PHP 7.4 on hosting.

Hi Aleksej, before i have PHP 7.3... now i set to 7.4 but email forms stil not working.

About duplicate post, i did create another post becouse my Title is wrong, i have problems with version 2021.4. not 2014.4, and i cant find where can i correct my mistake in title. If you have to close the discusion https://helpcenter.websitex5.com/pl/post/244822 than pls help me with that, how can i correct my mistake in tilte.

Thank you, Branko.

I sent a notification about your question to the company employees, expect an answer from them here in the comments.

Morning, please this is a big problem for us as well!

Hello Branko

Contact your hosting provider and ask them to correctly verify the version of PHP running on your website. Also, ask them to report the exact error that is generated. ERROR 500 is a generic code for an error that only web hosting can see. If you can tell the exact reason for the error, they may be able to give you advice on how to resolve it.

Let me know this information here so I can verify this further.

Thanks

Stefano

Hello Stefano,

I belive that this error comes from websitex5, because i downgrade version 2021.4.4 back to 2021.3.5 and now my email forms working fine. 

Stefano can u tell me more details about web hosting server Icomedia offer to us

There where i run my webpaige, they give me all this informations

Can you give us more informations with short answer (like: yes/no) about informations below?

(this informations Ive got from my host provider)

(short answer)

Space on server: 40 GB

host domains: 25

number of daily backups: 160 - 250

Number of attached domains: unlimited

Number of subdomains: unlimited

Number of MySQL / MariaDB databases: unlimited

Number of email inboxes: unlimited

Number of FTP accounts: unlimited

Can you give us more informations about informations below that i can compare with my details?

Thank you.

MACHINE

Pro web server: web host elite: INTEL XEON GOLD CPU

CPU cores:4

CPU GHz: 3.00 - 4.00

Simultaneous links ( EP ): 160

Physical memory ( pMem ):8 GB

Number of simultaneous connections to the data server:128

Disk Bandwidth ( IO ):60 MB / s

IOPS disk array

No. emails sent daily:7,000

No. recipients in 1 SMTP session

Email inbox size

Monthly data transfer

No. files and directories

Internet connection speed

No. daily backups

SOFTWARE ON HOST:

LSCache, QUIC, HTTP/3

Choosing a PHP version (8, 7 and 5)

Selection of PHP version also with .htaccess file

Node.js selector

Python selector

CloudLinux, CageFS

mod_lsapi (LiteSpeed)

SSI

SSL support (SNI)

Let's Encrypt Free SSL Certificate

Own secure tmp

HTTP/2, TLS 1.2, TLS 1.3

Zend Optimizer, Zend Guard Loader, Zend opcache

IonCube, SourceGuardian

Imagick plugin for PHP

ImageMagick (/usr/bin/)

gd2, gzip, mod_rewrite

mod_geoip

MySQL / MariaDB

PDO_MySQL

PHP support for MS SQL

EMAIL HOSTING

POP3, IMAP in SMTP

POP3S, IMAPS in SMTPS

SPF, DKIM in DMARC

SMTP sender authorization

Webmail

Antivirus and advanced Anti-SPAM protection

Unlimited redirection

Unlimited notifications in case of absence

Unlimited answering machines

Editing MX records

WEB HOSTING USER TOOLS

Free websites ( Website Builder ) with unlimited content pages

Web applications on click

Daily backups

Cron did

FTP, FTPS

Developer tools: Git, Composer, wp-cli, imapsync, etc.

Image optimization: jpegoptim, optipng and WebP (cwebp)

SSH access

Web file editor

phpMyAdmin database editor

Password folder protection

Edit your own error pages

Mime Types in Apache Handlers

Edit DNS records

The Control Panel

OPTIMIZED FOR HOSTING WEB APPLICATIONS

WordPress hosting

Joomla hosting

Drupal hosting

OpenCart hosting

PrestaShop hosting

Magento hosting

and many others

LITESPEED CACHE PLUGINS

WordPress

Magento (public cache up to 1,500 products)

Joomla

xenForo

PrestaShop

MediaWik

Drupal

OpenCart

Laravel

Shopware

CS-Cart

DOMAIN STATISTICS ON HOST

Accessible logs

Consumption statistics

Webalizer

HOST SECURITY

RBL / DNSBL SPAM filters

GeoIP restricts SMTP access

IP restriction of SSH access

reCAPTCHA

ADVANCED ACTIVE HOST PROTECTION

Advanced Firewall ( NGFW )

DoS (Denial of Service) protection

DDoS (Distributed Denial of Service) protection

NGIPS (Next Generation Intrusion Prevention System)

Antivirus protection

Spyware, malware, botnets, spam, etc. protection

Protection against known vulnerabilities (XSS, SQL injections, rootkits,…)

Brute Force protection (Joomla, WordPress, Drupal, ()

WAF (Web Application Firewall)

SUPPORT AND BACK-UP COPIES (BACK-UP COPIES)

24/7 email support

Online knowledge base

Telephone support

Writing to a RAID 10 disk table

Daily backups of complete data

Price for 1st year

Hello Branko 

You can actually find most important information about our server here:

https://www.websitex5.com/en/free-hosting.php

From this page, you can see the difference in total space as well as FTP account number for example

About the issue you specify though, I would like to ask you again to have your hosting check this error for you. If the error appears with the new version online, there might be some hosting configuration that we need to check.

However, we need your hosting to tell us exactly what is generating the issue

Ask them to report the exact error that is generated. ERROR 500 is a generic code for an error that only web hosting can see. If you can tell the exact reason for the error, they may be able to give you advice on how to resolve it.

Let me know this information here so I can verify this further.

Thank you

Stefano

Hello with a new version 2021.4.5 email forms works fine, thank you.