Error while compiling with getTime() in GSM.cpp

I get following error messages while compiling my project:

`Arduino: 1.8.13 (Windows Store 1.8.42.0) (Windows 10), Board: "Arduino MKR GSM 1400"

D:\OneDrive\Arduino\libraries\MKRGSM\src\GSM.cpp: In member function 'long unsigned int GSM::getTime()':

D:\OneDrive\Arduino\libraries\MKRGSM\src\GSM.cpp:339:13: error: aggregate 'GSM::getTime()::tm now' has incomplete type and cannot be defined

struct tm now;

^~~

D:\OneDrive\Arduino\libraries\MKRGSM\src\GSM.cpp:341:7: error: 'strptime' was not declared in this scope

if (strptime(response.c_str(), "+CCLK: \"%y/%m/%d,%H:%M:%S", &now) != NULL) {

   ^~~~~~~~

D:\OneDrive\Arduino\libraries\MKRGSM\src\GSM.cpp:341:7: note: suggested alternative: 'strxfrm'

if (strptime(response.c_str(), "+CCLK: \"%y/%m/%d,%H:%M:%S", &now) != NULL) {

   ^~~~~~~~

   strxfrm

D:\OneDrive\Arduino\libraries\MKRGSM\src\GSM.cpp:344:21: error: 'mktime' was not declared in this scope

 time_t result = mktime(&now);

                 ^~~~~~

D:\OneDrive\Arduino\libraries\MKRGSM\src\GSM.cpp:344:21: note: suggested alternative: 'getTime'

 time_t result = mktime(&now);

                 ^~~~~~

                 getTime

D:\OneDrive\Arduino\libraries\MKRGSM\src\GSM.cpp: In member function 'long unsigned int GSM::getLocalTime()':

D:\OneDrive\Arduino\libraries\MKRGSM\src\GSM.cpp:368:13: error: aggregate 'GSM::getLocalTime()::tm now' has incomplete type and cannot be defined

struct tm now;

^~~

D:\OneDrive\Arduino\libraries\MKRGSM\src\GSM.cpp:370:7: error: 'strptime' was not declared in this scope

if (strptime(response.c_str(), "+CCLK: \"%y/%m/%d,%H:%M:%S", &now) != NULL) {

   ^~~~~~~~

D:\OneDrive\Arduino\libraries\MKRGSM\src\GSM.cpp:370:7: note: suggested alternative: 'strxfrm'

if (strptime(response.c_str(), "+CCLK: \"%y/%m/%d,%H:%M:%S", &now) != NULL) {

   ^~~~~~~~

   strxfrm

D:\OneDrive\Arduino\libraries\MKRGSM\src\GSM.cpp:371:21: error: 'mktime' was not declared in this scope

 time_t result = mktime(&now);

                 ^~~~~~

D:\OneDrive\Arduino\libraries\MKRGSM\src\GSM.cpp:371:21: note: suggested alternative: 'getTime'

 time_t result = mktime(&now);

                 ^~~~~~

                 getTime

exit status 1`

arduino-libraries / MKRGSM