Large 4gb error_log

Hello, have a problem with an error_log file. In less than a month get large as 4GB.
In config.inc.php debug is Off

Debug Settings ;
;;;;;;;;;;;;;;;;;;

[debug]

; Display a stack trace when a fatal error occurs.
; Note that this may expose private information and should be disabled
; for any production system.
show_stacktrace = Off

; Display an error message when something goes wrong.
display_errors = Off

; Display deprecation warnings
deprecation_warnings = Off

; Log web service request information for debugging
log_web_service_info = Off

Here are few last lines of error log

[19-Dec-2018 07:55:28 UTC] PHP Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; ADORecordSet has a deprecated constructor in /home/x/public_html/lib/pkp/lib/adodb/adodb.inc.php on line 2921
[19-Dec-2018 07:55:28 UTC] PHP Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; ADORecordSet_array has a deprecated constructor in /home/x/public_html/lib/pkp/lib/adodb/adodb.inc.php on line 3939
[19-Dec-2018 07:55:28 UTC] PHP Warning: Declaration of PKPUsageEventPlugin::getEnabled() should be compatible with LazyLoadPlugin::getEnabled($contextId = NULL) in /home/x/public_html/lib/pkp/plugins/generic/usageEvent/PKPUsageEventPlugin.inc.php on line 386
[19-Dec-2018 07:55:28 UTC] PHP Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; Smarty has a deprecated constructor in /home/x/public_html/lib/pkp/lib/vendor/smarty/smarty/libs/Smarty.class.php on line 64
[19-Dec-2018 07:55:28 UTC] PHP Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; ADODB_Cache_File has a deprecated constructor in /homex/public_html/lib/pkp/lib/adodb/adodb.inc.php on line 263
[19-Dec-2018 07:55:28 UTC] PHP Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; ADOConnection has a deprecated constructor in /home/x/public_html/lib/pkp/lib/adodb/adodb.inc.php on line 359
[19-Dec-2018 07:55:28 UTC] PHP Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; ADORecordSet has a deprecated constructor in /home/x/public_html/lib/pkp/lib/adodb/adodb.inc.php on line 2921
[19-Dec-2018 07:55:28 UTC] PHP Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; ADORecordSet_array has a deprecated constructor in /home/x/public_html/lib/pkp/lib/adodb/adodb.inc.php on line 3939
[19-Dec-2018 07:55:28 UTC] PHP Warning: Declaration of PKPUsageEventPlugin::getEnabled() should be compatible with LazyLoadPlugin::getEnabled($contextId = NULL) in /home/x/public_html/lib/pkp/plugins/generic/usageEvent/PKPUsageEventPlugin.inc.php on line 386
[19-Dec-2018 07:55:28 UTC] PHP Deprecated: Non-static method Config::getContextBaseUrls() should not be called statically in /home/x/public_html/lib/pkp/plugins/generic/usageEvent/PKPUsageEventPlugin.inc.php on line 199
[19-Dec-2018 07:55:28 UTC] PHP Warning: Declaration of SubmissionFileDAO::fromRow($row) should be compatible with PKPSubmissionFileDAO::fromRow($row, $fileImplementation) in /home/xxx/public_html/classes/article/SubmissionFileDAO.inc.php on line 23

To keep the logs cleaner, you can use the PHP error_reporting directive to exclude logging of E_STRICT , E_DEPRECATED and E_NOTICE type errors. You may also want to exclude logging of E_WARNING. If desired, this can be set in your global php.ini configuration (or a similar directive affecting PHP for the OJS context).

Many of these messages should be resolved in the next version of OJS/OMP, courtesy of:
https://github.com/pkp/pkp-lib/issues/3578