Found the following math rendering problems:
bootstrap.geoGAM.Rd:33: Undefined control sequence: \ensuremath in \Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{s_{+}}âŠ
bootstrap.geoGAM.Rd:33: Undefined control sequence: \ensuremath in \tilde{Y}(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{s_+}})âŠ
bootstrap.geoGAM.Rd:41: Undefined control sequence: \ensuremath in Y(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{s}})^{âŠ
bootstrap.geoGAM.Rd:41: Undefined control sequence: \ensuremath in âŠt f(\mathbf{x}(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{s}}))
bootstrap.geoGAM.Rd:44: Undefined control sequence: \ensuremath in Y(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{s}})^{âŠ
bootstrap.geoGAM.Rd:46: Undefined control sequence: \ensuremath in âŠt f(\mathbf{x}(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{s_{+}}âŠ
bootstrap.geoGAM.Rd:47: Undefined control sequence: \ensuremath in âŠt f(\mathbf{x}(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{s_{+}}âŠ
bootstrap.geoGAM.Rd:47: Undefined control sequence: \ensuremath in \Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{s_{+}}âŠ
bootstrap.geoGAM.Rd:48: Undefined control sequence: \ensuremath in Y(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{s}})^{âŠ
bootstrap.geoGAM.Rd:53-56: Undefined control sequence: \ensuremath in âŠt f(\mathbf{x}(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{s_{+})âŠ
bootstrap.geoGAM.Rd:62: Undefined control sequence: \ensuremath in âŠtilde{Prob}}(Y(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{s}})=râŠ
geoGAM.Rd:51-57: Undefined control sequence: \ensuremath in âŠt}\mathrm{E}[Y(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{s}})\,âŠ
geoGAM.Rd:59: Undefined control sequence: \ensuremath in f_{j}(x_{j}(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{s}}))
geoGAM.Rd:60: Undefined control sequence: \ensuremath in x_{j}(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{s}})
geoGAM.Rd:66: Undefined control sequence: \ensuremath in \Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{x}}(\eâŠ
geoGAM.Rd:67: Undefined control sequence: \ensuremath in Y(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{s}})
geoGAM.Rd:71: Undefined control sequence: \ensuremath in \mu(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{x}}(\eâŠ
geoGAM.Rd:74: Undefined control sequence: \ensuremath in âŠj} f_{j}(x_{j}(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{s}}))
geoGAM.Rd:78: Undefined control sequence: \ensuremath in f_{\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\scriptstyle \âŠ
geoGAM.Rd:82: Undefined control sequence: \ensuremath in \Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{x}}
geoGAM.Rd:83-84: Undefined control sequence: \ensuremath in f_{j}(x_{j}(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{s}})) âŠ
geoGAM.Rd:85-86: Undefined control sequence: \ensuremath in f_{\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\scriptstyle \âŠ
geoGAM.Rd:87: Undefined control sequence: \ensuremath in \Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{x}}
geoGAM.Rd:90-91: Undefined control sequence: \ensuremath in 
      g(\mu(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{x}}(\eâŠ
geoGAM.Rd:92-97: Undefined control sequence: \ensuremath in âŠ{u}}(x_{j_{u}}(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{s}})) âŠ
geoGAM.Rd:98-106: Undefined control sequence: \ensuremath in âŠe{ \sum_{w} f_{\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\scriptstyle \âŠ
geoGAM.Rd:115-116: Undefined control sequence: \ensuremath in g\left(\mu(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{x}}(\eâŠ
geoGAM.Rd:120-125: Undefined control sequence: \ensuremath in âŠ    g\left(\mu(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{x}}(\eâŠ
geoGAM.Rd:129-135: Undefined control sequence: \ensuremath in 
      \mu(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{x}}(\eâŠ
geoGAM.Rd:140-141: Undefined control sequence: \ensuremath in Y(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{s}}) \âŠ
geoGAM.Rd:143-150: Undefined control sequence: \ensuremath in âŠmathrm{Prob}[Y(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{s}}) \âŠ
geoGAM.Rd:154-158: Undefined control sequence: \ensuremath in âŠmathrm{Prob}[Y(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{s}})\lâŠ
geoGAM.Rd:160: Undefined control sequence: \ensuremath in âŠmathrm{Prob}[Y(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{s}})\lâŠ
geoGAM.Rd:162-163: Undefined control sequence: \ensuremath in Y(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{s}}) \âŠ
geoGAM.Rd:163-164: Undefined control sequence: \ensuremath in (\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{s}}) \âŠ
geoGAM.Rd:192: Undefined control sequence: \ensuremath in f(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{x}}(\eâŠ
geoGAM.Rd:197: Undefined control sequence: \ensuremath in âŠf}( \mathbf{x}(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{s}}))^âŠ
geoGAM.Rd:200: Undefined control sequence: \ensuremath in \Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{U}}^{[âŠ
geoGAM.Rd:202-203: Undefined control sequence: \ensuremath in âŠ
  			\mathbf{x}(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{s}}))_âŠ
geoGAM.Rd:203: Undefined control sequence: \ensuremath in \Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{U}}^{[âŠ
geoGAM.Rd:204: Undefined control sequence: \ensuremath in g(\mathbf{x}(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{s}}))_âŠ
geoGAM.Rd:206-207: Undefined control sequence: \ensuremath in âŠf}( \mathbf{x}(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{s}}))^âŠ
geoGAM.Rd:239: Undefined control sequence: \ensuremath in f_j(x_j(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{s}}))
predict.geoGAM.Rd:41-46: Undefined control sequence: \ensuremath in âŠ	\mathrm{E}[ Y(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{s}})\,âŠ
predict.geoGAM.Rd:48: Undefined control sequence: \ensuremath in \hat f(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{x}}(\eâŠ
predict.geoGAM.Rd:50: Undefined control sequence: \ensuremath in âŠx{Var}[ \hat f(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{x}}(\eâŠ
predict.geoGAM.Rd:50: Undefined control sequence: \ensuremath in \hat f(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{x}}(\eâŠ
predict.geoGAM.Rd:54-58: Undefined control sequence: \ensuremath in âŠ}(s) = \hat{f}(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{x}}(\eâŠ
predict.geoGAM.Rd:60: Undefined control sequence: \ensuremath in \hat{f}(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{x}}(\eâŠ
predict.geoGAM.Rd:60: Undefined control sequence: \ensuremath in Var[ \hat{f}(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{x}}(\eâŠ
predict.geoGAM.Rd:60: Undefined control sequence: \ensuremath in \hat{f}(\Ì²eÌ²nÌ²sÌ²uÌ²rÌ²eÌ²mÌ²aÌ²tÌ²hÌ²{\mathbf{x}}(\eâŠ