Fixes parsing crash

app/src/main/java/net/pokeranalytics/android/ui/fragment/SubscriptionFragment.kt

@@ -25,6 +25,7 @@ import com.android.billingclient.api.BillingClient
 import com.android.billingclient.api.Purchase
 import com.android.billingclient.api.SkuDetails
 import com.android.billingclient.api.SkuDetailsResponseListener
+import com.crashlytics.android.Crashlytics
 import kotlinx.android.synthetic.main.fragment_subscription.*
 import net.pokeranalytics.android.R
 import net.pokeranalytics.android.exceptions.PAIllegalStateException
@@ -37,6 +38,7 @@ import net.pokeranalytics.android.util.billing.IAPProducts
 import net.pokeranalytics.android.util.billing.PurchaseDelegate
 import java.lang.ref.WeakReference
 import java.time.Period
+import java.time.format.DateTimeParseException
 
 class SubscriptionFragment : BaseFragment(), SkuDetailsResponseListener, PurchaseDelegate, ViewPager.OnPageChangeListener {
 
@@ -200,8 +202,12 @@ class SubscriptionFragment : BaseFragment(), SkuDetailsResponseListener, Purchas
 
 			var freeTrialDays = 30 // initial, should be more, no less
 			if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
-				val p = Period.parse(it.freeTrialPeriod)
-				freeTrialDays = p.days
+				try {
+					val p = Period.parse(it.freeTrialPeriod)
+					freeTrialDays = p.days
+				} catch (e: DateTimeParseException) {
+					Crashlytics.log("Error parsing period with value: ${it.freeTrialPeriod}")
+				}
 			}
 			val formattedFreeTrial =
 				"$freeTrialDays " + requireContext().getString(R.string.days) + " " + requireContext().getString(R.string.free_trial)