diff --git a/src/addons/userprofilefield/datetime/component/datetime.ts b/src/addons/userprofilefield/datetime/component/datetime.ts
index d494cf549..c26355ce0 100644
--- a/src/addons/userprofilefield/datetime/component/datetime.ts
+++ b/src/addons/userprofilefield/datetime/component/datetime.ts
@@ -75,7 +75,7 @@ export class AddonUserProfileFieldDatetimeComponent extends CoreUserProfileField
             this.max = field.param2;
         }
 
-        this.max = this.max || CoreTimeUtils.getDatetimeDefaultMin();
+        this.min = this.min || CoreTimeUtils.getDatetimeDefaultMin();
         this.max = this.max || CoreTimeUtils.getDatetimeDefaultMax();
     }
 
diff --git a/src/core/features/login/pages/email-signup/email-signup.ts b/src/core/features/login/pages/email-signup/email-signup.ts
index 8f130cd45..8aa65028e 100644
--- a/src/core/features/login/pages/email-signup/email-signup.ts
+++ b/src/core/features/login/pages/email-signup/email-signup.ts
@@ -55,7 +55,7 @@ export class CoreLoginEmailSignupPage implements OnInit {
     siteUrl!: string;
     siteConfig?: CoreSitePublicConfigResponse;
     siteName?: string;
-    authInstructions?: string;
+    authInstructions = '';
     settings?: AuthEmailSignupSettings;
     countries?: CoreCountry[];
     categories?: AuthEmailSignupProfileFieldsCategory[];
@@ -377,7 +377,7 @@ export class CoreLoginEmailSignupPage implements OnInit {
      * Show authentication instructions.
      */
     showAuthInstructions(): void {
-        CoreTextUtils.viewText(Translate.instant('core.login.instructions'), this.authInstructions!);
+        CoreTextUtils.viewText(Translate.instant('core.login.instructions'), this.authInstructions);
     }
 
     /**
@@ -419,7 +419,7 @@ export class CoreLoginEmailSignupPage implements OnInit {
 
             if (!result.status) {
                 if (this.countryControl.value) {
-                    this.signUpCountryControl!.setValue(this.countryControl.value);
+                    this.signUpCountryControl?.setValue(this.countryControl.value);
                 }
 
                 // Not a minor, go ahead.
@@ -428,7 +428,7 @@ export class CoreLoginEmailSignupPage implements OnInit {
                 // Is a minor.
                 this.isMinor = true;
             }
-        } catch (error) {
+        } catch {
             // Something wrong, redirect to the site.
             CoreDomUtils.showErrorModal('There was an error verifying your age, please try again using the browser.');
         } finally {