윈도우환경(localhost)에서 Bitnami에 CIboard를 설치해서 사용하고 있습니다.

사이트를 이용중에 하루에 한 번쯤 사이트를 찾을 수 없다는 오류페이지가 뜹니다.

아래위치에서 로그를 생성해서 파일을 열어보았습니다.

C:\Bitnami\wampstack-7.0.31-1\apache2\htdocs\application\logs

아래는 오류내용입니다.

ERROR - 2018-10-01 09:38:24 --> Severity: Error --> Class CI_Session_files_driver contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (SessionHandlerInterface::read) C:\Bitnami\wampstack-7.0.31-1\apache2\htdocs\_system\libraries\Session\drivers\Session_files_driver.php 49

ERROR - 2018-10-01 11:29:43 --> Severity: Warning --> Invalid argument supplied for foreach() C:\Bitnami\wampstack-7.0.31-1\apache2\htdocs\views\group\bootstrap\group.php 37

ERROR - 2018-10-01 11:32:05 --> Severity: Error --> Class CI_Session_files_driver contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (SessionHandlerInterface::gc) C:\Bitnami\wampstack-7.0.31-1\apache2\htdocs\_system\libraries\Session\drivers\Session_files_driver.php 49

  .....

ERROR - 2018-10-01 11:32:55 --> Severity: Error --> Class CI_Session_files_driver contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (SessionHandlerInterface::gc) C:\Bitnami\wampstack-7.0.31-1\apache2\htdocs\_system\libraries\Session\drivers\Session_files_driver.php 49