Help eror please

[Lunohod]

How to solve this problem who knows please help
 

 

 

Critical Error

An error was encountered during the lifetime of the application.

This could be due to a variety of problems, such as a bug in the application.

However, normally it is caused by misconfiguration.

Exception Details

Error: PDOException

Message: SQLSTATE[HY000] [2003] Can't connect to MySQL server on '185.209.22.204' (111)

File: /var/www/html/lib/Flux/Connection.php:81

File	Line	Function/Method
/var/www/html/lib/Flux/Connection.php	81	PDO::__construct()
/var/www/html/lib/Flux/Connection.php	94	Flux_Connection::connect()
/var/www/html/lib/Flux/Connection.php	159	Flux_Connection::getConnection()
/var/www/html/modules/install/index.php	17	Flux_Connection::getStatement()
/var/www/html/lib/Flux/Template.php	375	include()
/var/www/html/lib/Flux/Dispatcher.php	170	Flux_Template::render()
/var/www/html/index.php	177	Flux_Dispatcher::dispatch()

Exception Trace As String

#0 /var/www/html/lib/Flux/Connection.php(81): PDO->__construct(*hidden*)
#1 /var/www/html/lib/Flux/Connection.php(94): Flux_Connection->connect(Object(Flux_Config))
#2 /var/www/html/lib/Flux/Connection.php(159): Flux_Connection->getConnection()
#3 /var/www/html/modules/install/index.php(17): Flux_Connection->getStatement('SELECT VERSION(...')
#4 /var/www/html/lib/Flux/Template.php(375): include('/var/www/html/m...')
#5 /var/www/html/lib/Flux/Dispatcher.php(170): Flux_Template->render()
#6 /var/www/html/index.php(177): Flux_Dispatcher->dispatch(Array)
#7 {main}

[Chaos92]

3 hours ago, Lunohod said:

They say you need to clean the server cache. Do you know how to do this?
 

ask your hosting to enable connection from another IPs

[Lunohod]

They say you need to clean the server cache. Do you know how to do this?