ImportError urlib3 v2.0 only supports OpenSSL 1.1.1+, currently the 'ssl' module is compiled with'OpenSSL 10.2kefips 26 lan 2017.

Use the ssh tool to log in to the server and execute the command

btpip install -I requests==2.27
bt reload

AttributeError: module 'lib' has no attribute 'OpenSSL_add_all_algorithms'

Use the ssh tool to execute the command and try again

mv /www/server/panel/pyenv/lib/python3.7/site-packages/OpenSSL /tmp/OpenSSL_bak
btpip install pyOpenSSL -I
bt reload

Terminal displays this error

Try reinstalling paramiko using ssh tool solve it
btpip install paramiko -I && bt 1

Missing dependency on python library, how to solve it

Such as 1: ModuleNotFoundError: No module named 'requests'

btpip install -I requests==2.27
bt reload

Such as 2: ModuleNotFoundError: No module named 'psutil'

btpip install -I psutil
bt reload

The panel service is not running, the server executes the following command

Check if the panel is running:
/etc/init.d/bt status
The display is as follows:
Bt-Panel not running
Bt-Task not running

Start the panel service:
/etc/init.d/bt start
Restart the panel service:
/etc/init.d/bt restart

The system firewall port is not released: Note that the firewall (security group) of the server provider may also need to be released. The default port of the panel is: 7800

Check the port used by the panel, if it is not 7800, please replace it with the one you set
cat /www/server/panel/data/port.pl

ufw allow 7800/tcp firewall-cmd --permanent --zone=public --add-port=7800/tcp >/dev/null 2>&1 iptables -I INPUT -p tcp -m state --state NEW -m tcp --dport 7800 -j ACCEPT

After the authorized ip is set, the panel cannot be accessed

Solution:
Use the authorized IP to access the panel, or the server executes the following command to close the authorized IP
bt 13

Can't access panel after binding domain

Solution:
Use the bound domain to access, or the server executes the following command to cancel the domain name binding
bt 12

Incorrect account or password

Solution:
Use the correct account and password to log in. If you forget to execute the following command on the server to view the default panel account
bt 14

Use the return login account of the bt 14 command to log in. Note that the panel password in the above screenshot is the initial password. If it has been modified, log in with the modified password.
If the panel password is forgotten, execute the following command to modify, and then use the new password to log in to the panel
bt 5

Browser access panel prompt: ERR_CONNECTION_RESET

Solution:
The panel has SSL enabled. The problem caused by using http:// to access the panel can be changed to https:// to access the panel.
The panel does not have SSL turned on. The problem caused by using https:// to access the panel can be changed to http:// to access the panel.

The access panel security entry error is shown in the figure:

Solution:
Use the correct security entry to access, if you don't remember, you can use the following command to view
bt 14

The access panel prompts for a timeout, and there is no response when executing the bt command

Cause of the problem: The bt file is empty due to other factors such as insufficient disk or writing problems
Solution:
Delete the bt file, copy it again and authorize 755 permissions, and execute it again
rm -f /etc/init.d/bt cp /www/server/panel/init.sh /etc/init.d/bt chmod 755 /etc/init.d/bt && /etc/init.d/bt restart

The browser prompts that it cannot be accessed, and the server executes the bt 22 command to view the panel log and displays the "Too many open files" error

Cause of the problem: Insufficient number of server system handles causes the panel to fail to start normally
Solution:
Temporarily add a handle count setting, and reload the panel.
ulimit -n 100001 bt reload

There is no response when the panel clicks on login, and a 500 error is prompted. Re-overwrite installation prompts insufficient disk error

Cause of the problem: Insufficient disk or insufficient inode space
Solution:
Execute the command to check that the directory occupies 100% of the hard disk space, and clean it up after taking the snapshot
df -h

View Inodes Information
df -i

How to repair the aaPanel
https://forum.aapanel.com/d/1016-how-to-repair-the-aapanel

How to use Tamper-proof for Enterprise
https://forum.aapanel.com/d/17491-how-to-use-tamper-proof-for-enterprise

How to add Telegram to panel notifications
https://forum.aapanel.com/d/5115-how-to-add-telegram-to-panel-notifications

How to deploy SSl certificate for website in aaPanel
https://forum.aapanel.com/d/1413-how-to-deploy-ssl-certificate-for-website-in-aapanel

aaPanel enable Panel SSL use Self-signed certificate browser add secure
https://forum.aapanel.com/d/15210-aapanel-enable-panel-ssl-use-self-signed-certificate-browser-add-secure

How to use Amazon S3 storage to back up your data
https://forum.aapanel.com/d/1403-how-to-use-amazon-s3-storage-to-back-up-your-data

How to add PHP custom compilation parameters
https://forum.aapanel.com/d/1325-how-to-add-php-custom-compilation-parameters

How to compile and install third-party modules in aaPanel nginx
https://forum.aapanel.com/d/1015-how-to-compile-and-install-third-party-modules-in-aapanel-nginx

How to add custom modules for Nginx ( brotli )
https://forum.aapanel.com/d/2707-how-to-add-custom-modules-for-nginx-brotli

How to release the aaPanel port
https://forum.aapanel.com/d/599-how-to-release-the-aapanel-port

How to use Roundcube(WebMail) in aaPanel
https://forum.aapanel.com/d/657-how-to-use-roundcube-webmail-in-aapanel