refactor(plugin): log errors and use return value of reloadCertificates
refactor(plugin): log errors and use return value of reloadCertificates

StalderT/open62541,JGrothoff/open62541,open62541/open62541,open62541/open62541,JGrothoff/open62541,jpfr/open62541,open62541/open62541,open62541/open62541,jpfr/open62541,JGrothoff/open62541,StalderT/open62541,StalderT/open62541,JGrothoff/open62541,jpfr/open62541,jpfr/open62541,StalderT/open62541