A website / webmail hosted in Plesk shows the error: 508 Resource limit is reached

Kuzma Ivanov

Updated February 25, 2026 02:56

Plesk for Linux kb: technical

Applicable to:

Plesk is installed on a CloudLinux server with LVE Manager.
When opening a website or webmail, the page fails to load with one of the following error messages:

CONFIG_TEXT: 508 Resource limit is reached

CONFIG_TEXT: 508 Insufficient Resource
The following message is logged in domain's log /var/www/vhosts/system/example.com/logs/error_log:

CONFIG_TEXT: mod_hostinglimits: Error on LVE enter: LVE(10598) HANDLER(fcgid-script)

The subscription system user has hit the Entry Processes limit defined in CloudLinux LVE Manager.

Adjust the limit for the system user:

For the website

Connect to your Plesk server via SSH.
Find the system user name (login) of the domain (in the command below, replace example.com with the affected domain name):

# plesk db "select name, login from domains join hosting on domains.id=hosting.dom_id join sys_users on hosting.sys_user_id=sys_users.id where name='example.com'"

+-------------+----------+
| name | login |
+-------------+----------+
| example.com | john_doe |
+-------------+----------+
Find the USER ID using the system user name from step 2:

# grep -i "john_doe" /etc/passwd

johndoe:x:10008:1003::/var/www/vhosts/example.com:/bin/false
Adjust the Entry Processes limit:
- set your custom value:
  
  # lvectl set 10008 –-maxEntryProcs=50 –save
  
  where
  - 10008 - UID of the subscription user;
  - 50 - new number of connections. The default value is 20.
- remove the limit:
  
  # lvectl set 10008 --unlimited

For Roundcube / Horde webmail